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@@ -1818,8 +1818,8 @@
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">array.py</span><pre><span></span><code><a id="__codelineno-13-1" name="__codelineno-13-1" href="#__codelineno-13-1"></a><span class="sd">""" 随机访问元素 """</span>
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<a id="__codelineno-13-2" name="__codelineno-13-2" href="#__codelineno-13-2"></a><span class="k">def</span> <span class="nf">random_access</span><span class="p">(</span><span class="n">nums</span><span class="p">):</span>
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<div class="highlight"><span class="filename">array.py</span><pre><span></span><code><a id="__codelineno-13-1" name="__codelineno-13-1" href="#__codelineno-13-1"></a><span class="k">def</span> <span class="nf">random_access</span><span class="p">(</span><span class="n">nums</span><span class="p">):</span>
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<a id="__codelineno-13-2" name="__codelineno-13-2" href="#__codelineno-13-2"></a><span class="w"> </span><span class="sd">""" 随机访问元素 """</span>
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<a id="__codelineno-13-3" name="__codelineno-13-3" href="#__codelineno-13-3"></a> <span class="c1"># 在区间 [0, len(nums)-1] 中随机抽取一个数字</span>
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<a id="__codelineno-13-4" name="__codelineno-13-4" href="#__codelineno-13-4"></a> <span class="n">random_index</span> <span class="o">=</span> <span class="n">random</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">nums</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
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<a id="__codelineno-13-5" name="__codelineno-13-5" href="#__codelineno-13-5"></a> <span class="c1"># 获取并返回随机元素</span>
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@@ -1936,17 +1936,15 @@
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">array.py</span><pre><span></span><code><a id="__codelineno-23-1" name="__codelineno-23-1" href="#__codelineno-23-1"></a><span class="sd">""" 扩展数组长度 """</span>
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<a id="__codelineno-23-2" name="__codelineno-23-2" href="#__codelineno-23-2"></a><span class="c1"># 请注意，Python 的 list 是动态数组，可以直接扩展</span>
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<a id="__codelineno-23-3" name="__codelineno-23-3" href="#__codelineno-23-3"></a><span class="c1"># 为了方便学习，本函数将 list 看作是长度不可变的数组</span>
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<a id="__codelineno-23-4" name="__codelineno-23-4" href="#__codelineno-23-4"></a><span class="k">def</span> <span class="nf">extend</span><span class="p">(</span><span class="n">nums</span><span class="p">,</span> <span class="n">enlarge</span><span class="p">):</span>
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<a id="__codelineno-23-5" name="__codelineno-23-5" href="#__codelineno-23-5"></a> <span class="c1"># 初始化一个扩展长度后的数组</span>
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<a id="__codelineno-23-6" name="__codelineno-23-6" href="#__codelineno-23-6"></a> <span class="n">res</span> <span class="o">=</span> <span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">nums</span><span class="p">)</span> <span class="o">+</span> <span class="n">enlarge</span><span class="p">)</span>
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<a id="__codelineno-23-7" name="__codelineno-23-7" href="#__codelineno-23-7"></a> <span class="c1"># 将原数组中的所有元素复制到新数组</span>
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<a id="__codelineno-23-8" name="__codelineno-23-8" href="#__codelineno-23-8"></a> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">nums</span><span class="p">)):</span>
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<a id="__codelineno-23-9" name="__codelineno-23-9" href="#__codelineno-23-9"></a> <span class="n">res</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
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<a id="__codelineno-23-10" name="__codelineno-23-10" href="#__codelineno-23-10"></a> <span class="c1"># 返回扩展后的新数组</span>
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<a id="__codelineno-23-11" name="__codelineno-23-11" href="#__codelineno-23-11"></a> <span class="k">return</span> <span class="n">res</span>
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<div class="highlight"><span class="filename">array.py</span><pre><span></span><code><a id="__codelineno-23-1" name="__codelineno-23-1" href="#__codelineno-23-1"></a><span class="k">def</span> <span class="nf">extend</span><span class="p">(</span><span class="n">nums</span><span class="p">,</span> <span class="n">enlarge</span><span class="p">):</span>
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<a id="__codelineno-23-2" name="__codelineno-23-2" href="#__codelineno-23-2"></a><span class="w"> </span><span class="sd">""" 扩展数组长度 """</span>
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<a id="__codelineno-23-3" name="__codelineno-23-3" href="#__codelineno-23-3"></a> <span class="c1"># 初始化一个扩展长度后的数组</span>
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<a id="__codelineno-23-4" name="__codelineno-23-4" href="#__codelineno-23-4"></a> <span class="n">res</span> <span class="o">=</span> <span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">nums</span><span class="p">)</span> <span class="o">+</span> <span class="n">enlarge</span><span class="p">)</span>
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<a id="__codelineno-23-5" name="__codelineno-23-5" href="#__codelineno-23-5"></a> <span class="c1"># 将原数组中的所有元素复制到新数组</span>
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<a id="__codelineno-23-6" name="__codelineno-23-6" href="#__codelineno-23-6"></a> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">nums</span><span class="p">)):</span>
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<a id="__codelineno-23-7" name="__codelineno-23-7" href="#__codelineno-23-7"></a> <span class="n">res</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
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<a id="__codelineno-23-8" name="__codelineno-23-8" href="#__codelineno-23-8"></a> <span class="c1"># 返回扩展后的新数组</span>
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<a id="__codelineno-23-9" name="__codelineno-23-9" href="#__codelineno-23-9"></a> <span class="k">return</span> <span class="n">res</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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@@ -2075,8 +2073,8 @@
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">array.py</span><pre><span></span><code><a id="__codelineno-33-1" name="__codelineno-33-1" href="#__codelineno-33-1"></a><span class="sd">""" 在数组的索引 index 处插入元素 num """</span>
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<a id="__codelineno-33-2" name="__codelineno-33-2" href="#__codelineno-33-2"></a><span class="k">def</span> <span class="nf">insert</span><span class="p">(</span><span class="n">nums</span><span class="p">,</span> <span class="n">num</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
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<div class="highlight"><span class="filename">array.py</span><pre><span></span><code><a id="__codelineno-33-1" name="__codelineno-33-1" href="#__codelineno-33-1"></a><span class="k">def</span> <span class="nf">insert</span><span class="p">(</span><span class="n">nums</span><span class="p">,</span> <span class="n">num</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
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<a id="__codelineno-33-2" name="__codelineno-33-2" href="#__codelineno-33-2"></a><span class="w"> </span><span class="sd">""" 在数组的索引 index 处插入元素 num """</span>
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<a id="__codelineno-33-3" name="__codelineno-33-3" href="#__codelineno-33-3"></a> <span class="c1"># 把索引 index 以及之后的所有元素向后移动一位</span>
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<a id="__codelineno-33-4" name="__codelineno-33-4" href="#__codelineno-33-4"></a> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">nums</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="n">index</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">):</span>
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<a id="__codelineno-33-5" name="__codelineno-33-5" href="#__codelineno-33-5"></a> <span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="n">nums</span><span class="p">[</span><span class="n">i</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span>
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@@ -2179,8 +2177,8 @@
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">array.py</span><pre><span></span><code><a id="__codelineno-42-1" name="__codelineno-42-1" href="#__codelineno-42-1"></a><span class="sd">""" 删除索引 index 处元素 """</span>
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<a id="__codelineno-42-2" name="__codelineno-42-2" href="#__codelineno-42-2"></a><span class="k">def</span> <span class="nf">remove</span><span class="p">(</span><span class="n">nums</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
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<div class="highlight"><span class="filename">array.py</span><pre><span></span><code><a id="__codelineno-42-1" name="__codelineno-42-1" href="#__codelineno-42-1"></a><span class="k">def</span> <span class="nf">remove</span><span class="p">(</span><span class="n">nums</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
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<a id="__codelineno-42-2" name="__codelineno-42-2" href="#__codelineno-42-2"></a><span class="w"> </span><span class="sd">""" 删除索引 index 处元素 """</span>
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<a id="__codelineno-42-3" name="__codelineno-42-3" href="#__codelineno-42-3"></a> <span class="c1"># 把索引 index 之后的所有元素向前移动一位</span>
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<a id="__codelineno-42-4" name="__codelineno-42-4" href="#__codelineno-42-4"></a> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">index</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">nums</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">):</span>
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<a id="__codelineno-42-5" name="__codelineno-42-5" href="#__codelineno-42-5"></a> <span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="n">nums</span><span class="p">[</span><span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span>
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@@ -2293,8 +2291,8 @@
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">array.py</span><pre><span></span><code><a id="__codelineno-52-1" name="__codelineno-52-1" href="#__codelineno-52-1"></a><span class="sd">""" 遍历数组 """</span>
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<a id="__codelineno-52-2" name="__codelineno-52-2" href="#__codelineno-52-2"></a><span class="k">def</span> <span class="nf">traverse</span><span class="p">(</span><span class="n">nums</span><span class="p">):</span>
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<div class="highlight"><span class="filename">array.py</span><pre><span></span><code><a id="__codelineno-52-1" name="__codelineno-52-1" href="#__codelineno-52-1"></a><span class="k">def</span> <span class="nf">traverse</span><span class="p">(</span><span class="n">nums</span><span class="p">):</span>
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<a id="__codelineno-52-2" name="__codelineno-52-2" href="#__codelineno-52-2"></a><span class="w"> </span><span class="sd">""" 遍历数组 """</span>
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<a id="__codelineno-52-3" name="__codelineno-52-3" href="#__codelineno-52-3"></a> <span class="n">count</span> <span class="o">=</span> <span class="mi">0</span>
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<a id="__codelineno-52-4" name="__codelineno-52-4" href="#__codelineno-52-4"></a> <span class="c1"># 通过索引遍历数组</span>
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<a id="__codelineno-52-5" name="__codelineno-52-5" href="#__codelineno-52-5"></a> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">nums</span><span class="p">)):</span>
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@@ -2432,8 +2430,8 @@
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">array.py</span><pre><span></span><code><a id="__codelineno-62-1" name="__codelineno-62-1" href="#__codelineno-62-1"></a><span class="sd">""" 在数组中查找指定元素 """</span>
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<a id="__codelineno-62-2" name="__codelineno-62-2" href="#__codelineno-62-2"></a><span class="k">def</span> <span class="nf">find</span><span class="p">(</span><span class="n">nums</span><span class="p">,</span> <span class="n">target</span><span class="p">):</span>
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<div class="highlight"><span class="filename">array.py</span><pre><span></span><code><a id="__codelineno-62-1" name="__codelineno-62-1" href="#__codelineno-62-1"></a><span class="k">def</span> <span class="nf">find</span><span class="p">(</span><span class="n">nums</span><span class="p">,</span> <span class="n">target</span><span class="p">):</span>
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<a id="__codelineno-62-2" name="__codelineno-62-2" href="#__codelineno-62-2"></a><span class="w"> </span><span class="sd">""" 在数组中查找指定元素 """</span>
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<a id="__codelineno-62-3" name="__codelineno-62-3" href="#__codelineno-62-3"></a> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">nums</span><span class="p">)):</span>
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<a id="__codelineno-62-4" name="__codelineno-62-4" href="#__codelineno-62-4"></a> <span class="k">if</span> <span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">==</span> <span class="n">target</span><span class="p">:</span>
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<a id="__codelineno-62-5" name="__codelineno-62-5" href="#__codelineno-62-5"></a> <span class="k">return</span> <span class="n">i</span>
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@@ -2006,8 +2006,8 @@
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">linked_list.py</span><pre><span></span><code><a id="__codelineno-22-1" name="__codelineno-22-1" href="#__codelineno-22-1"></a><span class="sd">""" 在链表的结点 n0 之后插入结点 P """</span>
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<a id="__codelineno-22-2" name="__codelineno-22-2" href="#__codelineno-22-2"></a><span class="k">def</span> <span class="nf">insert</span><span class="p">(</span><span class="n">n0</span><span class="p">,</span> <span class="n">P</span><span class="p">):</span>
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<div class="highlight"><span class="filename">linked_list.py</span><pre><span></span><code><a id="__codelineno-22-1" name="__codelineno-22-1" href="#__codelineno-22-1"></a><span class="k">def</span> <span class="nf">insert</span><span class="p">(</span><span class="n">n0</span><span class="p">,</span> <span class="n">P</span><span class="p">):</span>
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<a id="__codelineno-22-2" name="__codelineno-22-2" href="#__codelineno-22-2"></a><span class="w"> </span><span class="sd">""" 在链表的结点 n0 之后插入结点 P """</span>
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<a id="__codelineno-22-3" name="__codelineno-22-3" href="#__codelineno-22-3"></a> <span class="n">n1</span> <span class="o">=</span> <span class="n">n0</span><span class="o">.</span><span class="n">next</span>
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<a id="__codelineno-22-4" name="__codelineno-22-4" href="#__codelineno-22-4"></a> <span class="n">P</span><span class="o">.</span><span class="n">next</span> <span class="o">=</span> <span class="n">n1</span>
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<a id="__codelineno-22-5" name="__codelineno-22-5" href="#__codelineno-22-5"></a> <span class="n">n0</span><span class="o">.</span><span class="n">next</span> <span class="o">=</span> <span class="n">P</span>
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@@ -2107,8 +2107,8 @@
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">linked_list.py</span><pre><span></span><code><a id="__codelineno-32-1" name="__codelineno-32-1" href="#__codelineno-32-1"></a><span class="sd">""" 删除链表的结点 n0 之后的首个结点 """</span>
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<a id="__codelineno-32-2" name="__codelineno-32-2" href="#__codelineno-32-2"></a><span class="k">def</span> <span class="nf">remove</span><span class="p">(</span><span class="n">n0</span><span class="p">):</span>
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<div class="highlight"><span class="filename">linked_list.py</span><pre><span></span><code><a id="__codelineno-32-1" name="__codelineno-32-1" href="#__codelineno-32-1"></a><span class="k">def</span> <span class="nf">remove</span><span class="p">(</span><span class="n">n0</span><span class="p">):</span>
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<a id="__codelineno-32-2" name="__codelineno-32-2" href="#__codelineno-32-2"></a><span class="w"> </span><span class="sd">""" 删除链表的结点 n0 之后的首个结点 """</span>
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<a id="__codelineno-32-3" name="__codelineno-32-3" href="#__codelineno-32-3"></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">n0</span><span class="o">.</span><span class="n">next</span><span class="p">:</span>
|
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<a id="__codelineno-32-4" name="__codelineno-32-4" href="#__codelineno-32-4"></a> <span class="k">return</span>
|
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<a id="__codelineno-32-5" name="__codelineno-32-5" href="#__codelineno-32-5"></a> <span class="c1"># n0 -> P -> n1</span>
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@@ -2228,8 +2228,8 @@
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</code></pre></div>
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</div>
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<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">linked_list.py</span><pre><span></span><code><a id="__codelineno-42-1" name="__codelineno-42-1" href="#__codelineno-42-1"></a><span class="sd">""" 访问链表中索引为 index 的结点 """</span>
|
||||
<a id="__codelineno-42-2" name="__codelineno-42-2" href="#__codelineno-42-2"></a><span class="k">def</span> <span class="nf">access</span><span class="p">(</span><span class="n">head</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
|
||||
<div class="highlight"><span class="filename">linked_list.py</span><pre><span></span><code><a id="__codelineno-42-1" name="__codelineno-42-1" href="#__codelineno-42-1"></a><span class="k">def</span> <span class="nf">access</span><span class="p">(</span><span class="n">head</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
|
||||
<a id="__codelineno-42-2" name="__codelineno-42-2" href="#__codelineno-42-2"></a><span class="w"> </span><span class="sd">""" 访问链表中索引为 index 的结点 """</span>
|
||||
<a id="__codelineno-42-3" name="__codelineno-42-3" href="#__codelineno-42-3"></a> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">index</span><span class="p">):</span>
|
||||
<a id="__codelineno-42-4" name="__codelineno-42-4" href="#__codelineno-42-4"></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">head</span><span class="p">:</span>
|
||||
<a id="__codelineno-42-5" name="__codelineno-42-5" href="#__codelineno-42-5"></a> <span class="k">return</span> <span class="kc">None</span>
|
||||
@@ -2357,8 +2357,8 @@
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">linked_list.py</span><pre><span></span><code><a id="__codelineno-52-1" name="__codelineno-52-1" href="#__codelineno-52-1"></a><span class="sd">""" 在链表中查找值为 target 的首个结点 """</span>
|
||||
<a id="__codelineno-52-2" name="__codelineno-52-2" href="#__codelineno-52-2"></a><span class="k">def</span> <span class="nf">find</span><span class="p">(</span><span class="n">head</span><span class="p">,</span> <span class="n">target</span><span class="p">):</span>
|
||||
<div class="highlight"><span class="filename">linked_list.py</span><pre><span></span><code><a id="__codelineno-52-1" name="__codelineno-52-1" href="#__codelineno-52-1"></a><span class="k">def</span> <span class="nf">find</span><span class="p">(</span><span class="n">head</span><span class="p">,</span> <span class="n">target</span><span class="p">):</span>
|
||||
<a id="__codelineno-52-2" name="__codelineno-52-2" href="#__codelineno-52-2"></a><span class="w"> </span><span class="sd">""" 在链表中查找值为 target 的首个结点 """</span>
|
||||
<a id="__codelineno-52-3" name="__codelineno-52-3" href="#__codelineno-52-3"></a> <span class="n">index</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<a id="__codelineno-52-4" name="__codelineno-52-4" href="#__codelineno-52-4"></a> <span class="k">while</span> <span class="n">head</span><span class="p">:</span>
|
||||
<a id="__codelineno-52-5" name="__codelineno-52-5" href="#__codelineno-52-5"></a> <span class="k">if</span> <span class="n">head</span><span class="o">.</span><span class="n">val</span> <span class="o">==</span> <span class="n">target</span><span class="p">:</span>
|
||||
|
||||
@@ -2493,72 +2493,77 @@
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">my_list.py</span><pre><span></span><code><a id="__codelineno-62-1" name="__codelineno-62-1" href="#__codelineno-62-1"></a><span class="sd">""" 列表类简易实现 """</span>
|
||||
<a id="__codelineno-62-2" name="__codelineno-62-2" href="#__codelineno-62-2"></a><span class="k">class</span> <span class="nc">MyList</span><span class="p">:</span>
|
||||
<a id="__codelineno-62-3" name="__codelineno-62-3" href="#__codelineno-62-3"></a><span class="w"> </span><span class="sd">""" 构造方法 """</span>
|
||||
<a id="__codelineno-62-4" name="__codelineno-62-4" href="#__codelineno-62-4"></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<div class="highlight"><span class="filename">my_list.py</span><pre><span></span><code><a id="__codelineno-62-1" name="__codelineno-62-1" href="#__codelineno-62-1"></a><span class="k">class</span> <span class="nc">MyList</span><span class="p">:</span>
|
||||
<a id="__codelineno-62-2" name="__codelineno-62-2" href="#__codelineno-62-2"></a><span class="w"> </span><span class="sd">""" 列表类简易实现 """</span>
|
||||
<a id="__codelineno-62-3" name="__codelineno-62-3" href="#__codelineno-62-3"></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-4" name="__codelineno-62-4" href="#__codelineno-62-4"></a><span class="w"> </span><span class="sd">""" 构造方法 """</span>
|
||||
<a id="__codelineno-62-5" name="__codelineno-62-5" href="#__codelineno-62-5"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__capacity</span> <span class="o">=</span> <span class="mi">10</span> <span class="c1"># 列表容量</span>
|
||||
<a id="__codelineno-62-6" name="__codelineno-62-6" href="#__codelineno-62-6"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span> <span class="o">=</span> <span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">__capacity</span> <span class="c1"># 数组（存储列表元素）</span>
|
||||
<a id="__codelineno-62-7" name="__codelineno-62-7" href="#__codelineno-62-7"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">=</span> <span class="mi">0</span> <span class="c1"># 列表长度（即当前元素数量）</span>
|
||||
<a id="__codelineno-62-8" name="__codelineno-62-8" href="#__codelineno-62-8"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__extend_ratio</span> <span class="o">=</span> <span class="mi">2</span> <span class="c1"># 每次列表扩容的倍数</span>
|
||||
<a id="__codelineno-62-9" name="__codelineno-62-9" href="#__codelineno-62-9"></a>
|
||||
<a id="__codelineno-62-10" name="__codelineno-62-10" href="#__codelineno-62-10"></a><span class="w"> </span><span class="sd">""" 获取列表长度（即当前元素数量） """</span>
|
||||
<a id="__codelineno-62-11" name="__codelineno-62-11" href="#__codelineno-62-11"></a> <span class="k">def</span> <span class="nf">size</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-10" name="__codelineno-62-10" href="#__codelineno-62-10"></a> <span class="k">def</span> <span class="nf">size</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-11" name="__codelineno-62-11" href="#__codelineno-62-11"></a><span class="w"> </span><span class="sd">""" 获取列表长度（即当前元素数量） """</span>
|
||||
<a id="__codelineno-62-12" name="__codelineno-62-12" href="#__codelineno-62-12"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span>
|
||||
<a id="__codelineno-62-13" name="__codelineno-62-13" href="#__codelineno-62-13"></a>
|
||||
<a id="__codelineno-62-14" name="__codelineno-62-14" href="#__codelineno-62-14"></a><span class="w"> </span><span class="sd">""" 获取列表容量 """</span>
|
||||
<a id="__codelineno-62-15" name="__codelineno-62-15" href="#__codelineno-62-15"></a> <span class="k">def</span> <span class="nf">capacity</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-14" name="__codelineno-62-14" href="#__codelineno-62-14"></a> <span class="k">def</span> <span class="nf">capacity</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-15" name="__codelineno-62-15" href="#__codelineno-62-15"></a><span class="w"> </span><span class="sd">""" 获取列表容量 """</span>
|
||||
<a id="__codelineno-62-16" name="__codelineno-62-16" href="#__codelineno-62-16"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__capacity</span>
|
||||
<a id="__codelineno-62-17" name="__codelineno-62-17" href="#__codelineno-62-17"></a>
|
||||
<a id="__codelineno-62-18" name="__codelineno-62-18" href="#__codelineno-62-18"></a><span class="w"> </span><span class="sd">""" 访问元素 """</span>
|
||||
<a id="__codelineno-62-19" name="__codelineno-62-19" href="#__codelineno-62-19"></a> <span class="k">def</span> <span class="nf">get</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-18" name="__codelineno-62-18" href="#__codelineno-62-18"></a> <span class="k">def</span> <span class="nf">get</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-19" name="__codelineno-62-19" href="#__codelineno-62-19"></a><span class="w"> </span><span class="sd">""" 访问元素 """</span>
|
||||
<a id="__codelineno-62-20" name="__codelineno-62-20" href="#__codelineno-62-20"></a> <span class="c1"># 索引如果越界则抛出异常，下同</span>
|
||||
<a id="__codelineno-62-21" name="__codelineno-62-21" href="#__codelineno-62-21"></a> <span class="k">assert</span> <span class="n">index</span> <span class="o">>=</span> <span class="mi">0</span> <span class="ow">and</span> <span class="n">index</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span><span class="p">,</span> <span class="s2">"索引越界"</span>
|
||||
<a id="__codelineno-62-22" name="__codelineno-62-22" href="#__codelineno-62-22"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
|
||||
<a id="__codelineno-62-23" name="__codelineno-62-23" href="#__codelineno-62-23"></a>
|
||||
<a id="__codelineno-62-24" name="__codelineno-62-24" href="#__codelineno-62-24"></a><span class="w"> </span><span class="sd">""" 更新元素 """</span>
|
||||
<a id="__codelineno-62-25" name="__codelineno-62-25" href="#__codelineno-62-25"></a> <span class="k">def</span> <span class="nf">set</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">num</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-24" name="__codelineno-62-24" href="#__codelineno-62-24"></a> <span class="k">def</span> <span class="nf">set</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">num</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-25" name="__codelineno-62-25" href="#__codelineno-62-25"></a><span class="w"> </span><span class="sd">""" 更新元素 """</span>
|
||||
<a id="__codelineno-62-26" name="__codelineno-62-26" href="#__codelineno-62-26"></a> <span class="k">assert</span> <span class="n">index</span> <span class="o">>=</span> <span class="mi">0</span> <span class="ow">and</span> <span class="n">index</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span><span class="p">,</span> <span class="s2">"索引越界"</span>
|
||||
<a id="__codelineno-62-27" name="__codelineno-62-27" href="#__codelineno-62-27"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span> <span class="o">=</span> <span class="n">num</span>
|
||||
<a id="__codelineno-62-28" name="__codelineno-62-28" href="#__codelineno-62-28"></a>
|
||||
<a id="__codelineno-62-29" name="__codelineno-62-29" href="#__codelineno-62-29"></a><span class="w"> </span><span class="sd">""" 中间插入（尾部添加）元素 """</span>
|
||||
<a id="__codelineno-62-30" name="__codelineno-62-30" href="#__codelineno-62-30"></a> <span class="k">def</span> <span class="nf">add</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">num</span><span class="p">,</span> <span class="n">index</span><span class="o">=-</span><span class="mi">1</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-31" name="__codelineno-62-31" href="#__codelineno-62-31"></a> <span class="k">assert</span> <span class="n">index</span> <span class="o">>=</span> <span class="mi">0</span> <span class="ow">and</span> <span class="n">index</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span><span class="p">,</span> <span class="s2">"索引越界"</span>
|
||||
<a id="__codelineno-62-32" name="__codelineno-62-32" href="#__codelineno-62-32"></a> <span class="c1"># 若不指定索引 index ，则向数组尾部添加元素</span>
|
||||
<a id="__codelineno-62-33" name="__codelineno-62-33" href="#__codelineno-62-33"></a> <span class="k">if</span> <span class="n">index</span> <span class="o">==</span> <span class="o">-</span><span class="mi">1</span><span class="p">:</span>
|
||||
<a id="__codelineno-62-34" name="__codelineno-62-34" href="#__codelineno-62-34"></a> <span class="n">index</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span>
|
||||
<a id="__codelineno-62-35" name="__codelineno-62-35" href="#__codelineno-62-35"></a> <span class="c1"># 元素数量超出容量时，触发扩容机制</span>
|
||||
<a id="__codelineno-62-36" name="__codelineno-62-36" href="#__codelineno-62-36"></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">capacity</span><span class="p">():</span>
|
||||
<a id="__codelineno-62-37" name="__codelineno-62-37" href="#__codelineno-62-37"></a> <span class="bp">self</span><span class="o">.</span><span class="n">extend_capacity</span><span class="p">()</span>
|
||||
<a id="__codelineno-62-38" name="__codelineno-62-38" href="#__codelineno-62-38"></a> <span class="c1"># 索引 i 以及之后的元素都向后移动一位</span>
|
||||
<a id="__codelineno-62-39" name="__codelineno-62-39" href="#__codelineno-62-39"></a> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="n">index</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-40" name="__codelineno-62-40" href="#__codelineno-62-40"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">j</span><span class="p">]</span>
|
||||
<a id="__codelineno-62-41" name="__codelineno-62-41" href="#__codelineno-62-41"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span> <span class="o">=</span> <span class="n">num</span>
|
||||
<a id="__codelineno-62-42" name="__codelineno-62-42" href="#__codelineno-62-42"></a> <span class="c1"># 更新元素数量</span>
|
||||
<a id="__codelineno-62-43" name="__codelineno-62-43" href="#__codelineno-62-43"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">+=</span> <span class="mi">1</span>
|
||||
<a id="__codelineno-62-44" name="__codelineno-62-44" href="#__codelineno-62-44"></a>
|
||||
<a id="__codelineno-62-45" name="__codelineno-62-45" href="#__codelineno-62-45"></a><span class="w"> </span><span class="sd">""" 删除元素 """</span>
|
||||
<a id="__codelineno-62-46" name="__codelineno-62-46" href="#__codelineno-62-46"></a> <span class="k">def</span> <span class="nf">remove</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-47" name="__codelineno-62-47" href="#__codelineno-62-47"></a> <span class="k">assert</span> <span class="n">index</span> <span class="o">>=</span> <span class="mi">0</span> <span class="ow">and</span> <span class="n">index</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span><span class="p">,</span> <span class="s2">"索引越界"</span>
|
||||
<a id="__codelineno-62-48" name="__codelineno-62-48" href="#__codelineno-62-48"></a> <span class="n">num</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
|
||||
<a id="__codelineno-62-49" name="__codelineno-62-49" href="#__codelineno-62-49"></a> <span class="c1"># 索引 i 之后的元素都向前移动一位</span>
|
||||
<a id="__codelineno-62-50" name="__codelineno-62-50" href="#__codelineno-62-50"></a> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">index</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-51" name="__codelineno-62-51" href="#__codelineno-62-51"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">j</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span>
|
||||
<a id="__codelineno-62-52" name="__codelineno-62-52" href="#__codelineno-62-52"></a> <span class="c1"># 更新元素数量</span>
|
||||
<a id="__codelineno-62-53" name="__codelineno-62-53" href="#__codelineno-62-53"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">-=</span> <span class="mi">1</span>
|
||||
<a id="__codelineno-62-54" name="__codelineno-62-54" href="#__codelineno-62-54"></a> <span class="c1"># 返回被删除元素</span>
|
||||
<a id="__codelineno-62-55" name="__codelineno-62-55" href="#__codelineno-62-55"></a> <span class="k">return</span> <span class="n">num</span>
|
||||
<a id="__codelineno-62-56" name="__codelineno-62-56" href="#__codelineno-62-56"></a>
|
||||
<a id="__codelineno-62-57" name="__codelineno-62-57" href="#__codelineno-62-57"></a><span class="w"> </span><span class="sd">""" 列表扩容 """</span>
|
||||
<a id="__codelineno-62-58" name="__codelineno-62-58" href="#__codelineno-62-58"></a> <span class="k">def</span> <span class="nf">extend_capacity</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-59" name="__codelineno-62-59" href="#__codelineno-62-59"></a> <span class="c1"># 新建一个长度为 self.__size 的数组，并将原数组拷贝到新数组</span>
|
||||
<a id="__codelineno-62-60" name="__codelineno-62-60" href="#__codelineno-62-60"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span> <span class="o">+</span> <span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">capacity</span><span class="p">()</span> <span class="o">*</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__extend_ratio</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<a id="__codelineno-62-61" name="__codelineno-62-61" href="#__codelineno-62-61"></a> <span class="c1"># 更新列表容量</span>
|
||||
<a id="__codelineno-62-62" name="__codelineno-62-62" href="#__codelineno-62-62"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__capacity</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">)</span>
|
||||
<a id="__codelineno-62-63" name="__codelineno-62-63" href="#__codelineno-62-63"></a>
|
||||
<a id="__codelineno-62-64" name="__codelineno-62-64" href="#__codelineno-62-64"></a><span class="w"> </span><span class="sd">""" 返回有效长度的列表 """</span>
|
||||
<a id="__codelineno-62-65" name="__codelineno-62-65" href="#__codelineno-62-65"></a> <span class="k">def</span> <span class="nf">to_array</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-66" name="__codelineno-62-66" href="#__codelineno-62-66"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[:</span><span class="bp">self</span><span class="o">.</span><span class="n">__size</span><span class="p">]</span>
|
||||
<a id="__codelineno-62-29" name="__codelineno-62-29" href="#__codelineno-62-29"></a> <span class="k">def</span> <span class="nf">add</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">num</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-30" name="__codelineno-62-30" href="#__codelineno-62-30"></a><span class="w"> </span><span class="sd">""" 尾部添加元素 """</span>
|
||||
<a id="__codelineno-62-31" name="__codelineno-62-31" href="#__codelineno-62-31"></a> <span class="c1"># 元素数量超出容量时，触发扩容机制</span>
|
||||
<a id="__codelineno-62-32" name="__codelineno-62-32" href="#__codelineno-62-32"></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">size</span><span class="p">()</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">capacity</span><span class="p">():</span>
|
||||
<a id="__codelineno-62-33" name="__codelineno-62-33" href="#__codelineno-62-33"></a> <span class="bp">self</span><span class="o">.</span><span class="n">extend_capacity</span><span class="p">();</span>
|
||||
<a id="__codelineno-62-34" name="__codelineno-62-34" href="#__codelineno-62-34"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">__size</span><span class="p">]</span> <span class="o">=</span> <span class="n">num</span>
|
||||
<a id="__codelineno-62-35" name="__codelineno-62-35" href="#__codelineno-62-35"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">+=</span> <span class="mi">1</span>
|
||||
<a id="__codelineno-62-36" name="__codelineno-62-36" href="#__codelineno-62-36"></a>
|
||||
<a id="__codelineno-62-37" name="__codelineno-62-37" href="#__codelineno-62-37"></a> <span class="k">def</span> <span class="nf">insert</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">num</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-38" name="__codelineno-62-38" href="#__codelineno-62-38"></a><span class="w"> </span><span class="sd">""" 中间插入元素 """</span>
|
||||
<a id="__codelineno-62-39" name="__codelineno-62-39" href="#__codelineno-62-39"></a> <span class="k">assert</span> <span class="n">index</span> <span class="o">>=</span> <span class="mi">0</span> <span class="ow">and</span> <span class="n">index</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span><span class="p">,</span> <span class="s2">"索引越界"</span>
|
||||
<a id="__codelineno-62-40" name="__codelineno-62-40" href="#__codelineno-62-40"></a> <span class="c1"># 元素数量超出容量时，触发扩容机制</span>
|
||||
<a id="__codelineno-62-41" name="__codelineno-62-41" href="#__codelineno-62-41"></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">capacity</span><span class="p">():</span>
|
||||
<a id="__codelineno-62-42" name="__codelineno-62-42" href="#__codelineno-62-42"></a> <span class="bp">self</span><span class="o">.</span><span class="n">extend_capacity</span><span class="p">()</span>
|
||||
<a id="__codelineno-62-43" name="__codelineno-62-43" href="#__codelineno-62-43"></a> <span class="c1"># 索引 i 以及之后的元素都向后移动一位</span>
|
||||
<a id="__codelineno-62-44" name="__codelineno-62-44" href="#__codelineno-62-44"></a> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="n">index</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-45" name="__codelineno-62-45" href="#__codelineno-62-45"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">j</span><span class="p">]</span>
|
||||
<a id="__codelineno-62-46" name="__codelineno-62-46" href="#__codelineno-62-46"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span> <span class="o">=</span> <span class="n">num</span>
|
||||
<a id="__codelineno-62-47" name="__codelineno-62-47" href="#__codelineno-62-47"></a> <span class="c1"># 更新元素数量</span>
|
||||
<a id="__codelineno-62-48" name="__codelineno-62-48" href="#__codelineno-62-48"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">+=</span> <span class="mi">1</span>
|
||||
<a id="__codelineno-62-49" name="__codelineno-62-49" href="#__codelineno-62-49"></a>
|
||||
<a id="__codelineno-62-50" name="__codelineno-62-50" href="#__codelineno-62-50"></a> <span class="k">def</span> <span class="nf">remove</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-51" name="__codelineno-62-51" href="#__codelineno-62-51"></a><span class="w"> </span><span class="sd">""" 删除元素 """</span>
|
||||
<a id="__codelineno-62-52" name="__codelineno-62-52" href="#__codelineno-62-52"></a> <span class="k">assert</span> <span class="n">index</span> <span class="o">>=</span> <span class="mi">0</span> <span class="ow">and</span> <span class="n">index</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span><span class="p">,</span> <span class="s2">"索引越界"</span>
|
||||
<a id="__codelineno-62-53" name="__codelineno-62-53" href="#__codelineno-62-53"></a> <span class="n">num</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
|
||||
<a id="__codelineno-62-54" name="__codelineno-62-54" href="#__codelineno-62-54"></a> <span class="c1"># 索引 i 之后的元素都向前移动一位</span>
|
||||
<a id="__codelineno-62-55" name="__codelineno-62-55" href="#__codelineno-62-55"></a> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">index</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-56" name="__codelineno-62-56" href="#__codelineno-62-56"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">j</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span>
|
||||
<a id="__codelineno-62-57" name="__codelineno-62-57" href="#__codelineno-62-57"></a> <span class="c1"># 更新元素数量</span>
|
||||
<a id="__codelineno-62-58" name="__codelineno-62-58" href="#__codelineno-62-58"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">-=</span> <span class="mi">1</span>
|
||||
<a id="__codelineno-62-59" name="__codelineno-62-59" href="#__codelineno-62-59"></a> <span class="c1"># 返回被删除元素</span>
|
||||
<a id="__codelineno-62-60" name="__codelineno-62-60" href="#__codelineno-62-60"></a> <span class="k">return</span> <span class="n">num</span>
|
||||
<a id="__codelineno-62-61" name="__codelineno-62-61" href="#__codelineno-62-61"></a>
|
||||
<a id="__codelineno-62-62" name="__codelineno-62-62" href="#__codelineno-62-62"></a> <span class="k">def</span> <span class="nf">extend_capacity</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-63" name="__codelineno-62-63" href="#__codelineno-62-63"></a><span class="w"> </span><span class="sd">""" 列表扩容 """</span>
|
||||
<a id="__codelineno-62-64" name="__codelineno-62-64" href="#__codelineno-62-64"></a> <span class="c1"># 新建一个长度为 self.__size 的数组，并将原数组拷贝到新数组</span>
|
||||
<a id="__codelineno-62-65" name="__codelineno-62-65" href="#__codelineno-62-65"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span> <span class="o">+</span> <span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">capacity</span><span class="p">()</span> <span class="o">*</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__extend_ratio</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<a id="__codelineno-62-66" name="__codelineno-62-66" href="#__codelineno-62-66"></a> <span class="c1"># 更新列表容量</span>
|
||||
<a id="__codelineno-62-67" name="__codelineno-62-67" href="#__codelineno-62-67"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__capacity</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">)</span>
|
||||
<a id="__codelineno-62-68" name="__codelineno-62-68" href="#__codelineno-62-68"></a>
|
||||
<a id="__codelineno-62-69" name="__codelineno-62-69" href="#__codelineno-62-69"></a> <span class="k">def</span> <span class="nf">to_array</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<a id="__codelineno-62-70" name="__codelineno-62-70" href="#__codelineno-62-70"></a><span class="w"> </span><span class="sd">""" 返回有效长度的列表 """</span>
|
||||
<a id="__codelineno-62-71" name="__codelineno-62-71" href="#__codelineno-62-71"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[:</span><span class="bp">self</span><span class="o">.</span><span class="n">__size</span><span class="p">]</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
@@ -2865,7 +2870,7 @@
|
||||
<a id="__codelineno-65-91" name="__codelineno-65-91" href="#__codelineno-65-91"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">toArray</span><span class="p">()</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[]</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-65-92" name="__codelineno-65-92" href="#__codelineno-65-92"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">size</span><span class="p">();</span>
|
||||
<a id="__codelineno-65-93" name="__codelineno-65-93" href="#__codelineno-65-93"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
|
||||
<a id="__codelineno-65-94" name="__codelineno-65-94" href="#__codelineno-65-94"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="nx">size</span><span class="p">);</span>
|
||||
<a id="__codelineno-65-94" name="__codelineno-65-94" href="#__codelineno-65-94"></a><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="nx">size</span><span class="p">);</span>
|
||||
<a id="__codelineno-65-95" name="__codelineno-65-95" href="#__codelineno-65-95"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="nx">size</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-65-96" name="__codelineno-65-96" href="#__codelineno-65-96"></a><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="nx">i</span><span class="p">);</span>
|
||||
<a id="__codelineno-65-97" name="__codelineno-65-97" href="#__codelineno-65-97"></a><span class="w"> </span><span class="p">}</span>
|
||||
|
||||
Reference in New Issue
Block a user