This commit is contained in:
krahets
2023-03-12 18:46:03 +08:00
parent 209d82a8cc
commit f6b9a75c8f
23 changed files with 406 additions and 359 deletions

View File

@@ -39,9 +39,9 @@ comments: true
```python title="list.py"
""" 初始化列表 """
# 无初始值
list1 = []
list1: List[int] = []
# 有初始值
list = [1, 3, 2, 5, 4]
list: List[int] = [1, 3, 2, 5, 4]
```
=== "Go"
@@ -136,7 +136,7 @@ comments: true
```python title="list.py"
""" 访问元素 """
num = list[1] # 访问索引 1 处的元素
num: int = list[1] # 访问索引 1 处的元素
""" 更新元素 """
list[1] = 0 # 将索引 1 处的元素更新为 0
@@ -434,12 +434,12 @@ comments: true
```python title="list.py"
""" 通过索引遍历列表 """
count = 0
count: int = 0
for i in range(len(list)):
count += 1
""" 直接遍历列表元素 """
count = 0
count: int = 0
for n in list:
count += 1
```
@@ -572,7 +572,7 @@ comments: true
```python title="list.py"
""" 拼接两个列表 """
list1 = [6, 8, 7, 10, 9]
list1: List[int] = [6, 8, 7, 10, 9]
list += list1 # 将列表 list1 拼接到 list 之后
```
@@ -937,31 +937,31 @@ comments: true
""" 列表类简易实现 """
def __init__(self):
""" 构造方法 """
self.__capacity = 10 # 列表容量
self.__nums = [0] * self.__capacity # 数组(存储列表元素)
self.__size = 0 # 列表长度(即当前元素数量)
self.__extend_ratio = 2 # 每次列表扩容的倍数
self.__capacity: int = 10 # 列表容量
self.__nums: List[int] = [0] * self.__capacity # 数组(存储列表元素)
self.__size: int = 0 # 列表长度(即当前元素数量)
self.__extend_ratio: int = 2 # 每次列表扩容的倍数
def size(self):
def size(self) -> int:
""" 获取列表长度(即当前元素数量) """
return self.__size
def capacity(self):
def capacity(self) -> int:
""" 获取列表容量 """
return self.__capacity
def get(self, index):
def get(self, index: int) -> int:
""" 访问元素 """
# 索引如果越界则抛出异常,下同
assert index >= 0 and index < self.__size, "索引越界"
return self.__nums[index]
def set(self, num, index):
def set(self, num: int, index: int) -> None:
""" 更新元素 """
assert index >= 0 and index < self.__size, "索引越界"
self.__nums[index] = num
def add(self, num):
def add(self, num: int) -> None:
""" 尾部添加元素 """
# 元素数量超出容量时,触发扩容机制
if self.size() == self.capacity():
@@ -969,7 +969,7 @@ comments: true
self.__nums[self.__size] = num
self.__size += 1
def insert(self, num, index):
def insert(self, num: int, index: int) -> None:
""" 中间插入元素 """
assert index >= 0 and index < self.__size, "索引越界"
# 元素数量超出容量时,触发扩容机制
@@ -982,7 +982,7 @@ comments: true
# 更新元素数量
self.__size += 1
def remove(self, index):
def remove(self, index: int) -> int:
""" 删除元素 """
assert index >= 0 and index < self.__size, "索引越界"
num = self.__nums[index]
@@ -994,14 +994,14 @@ comments: true
# 返回被删除元素
return num
def extend_capacity(self):
def extend_capacity(self) -> None:
""" 列表扩容 """
# 新建一个长度为 self.__size 的数组,并将原数组拷贝到新数组
self.__nums = self.__nums + [0] * self.capacity() * (self.__extend_ratio - 1)
# 更新列表容量
self.__capacity = len(self.__nums)
def to_array(self):
def to_array(self) -> List[int]:
""" 返回有效长度的列表 """
return self.__nums[:self.__size]
```