2020-10-19 21:08:55

docs/da/011.md

@@ -6,7 +6,7 @@
 
 In [1]:
 
-```
+```py
 s = "hello world"
 s[0]
 
@@ -14,7 +14,7 @@ s[0]
 
 Out[1]:
 
-```
+```py
 'h'
 ```
 
@@ -22,14 +22,14 @@ Out[1]:
 
 In [2]:
 
-```
+```py
 s[4]
 
 ```
 
 Out[2]:
 
-```
+```py
 'o'
 ```
 
@@ -37,14 +37,14 @@ Out[2]:
 
 In [3]:
 
-```
+```py
 s[-2]
 
 ```
 
 Out[3]:
 
-```
+```py
 'l'
 ```
 
@@ -52,12 +52,12 @@ Out[3]:
 
 In [4]:
 
-```
+```py
 s[11]
 
 ```
 
-```
+```py
 ---------------------------------------------------------------------------
 IndexError                                Traceback (most recent call last)
 <ipython-input-4-79ffc22473a3> in <module>()
@@ -70,7 +70,7 @@ IndexError: string index out of range
 
 分片用来从序列中提取出想要的子序列，其用法为：
 
-```
+```py
 var[lower:upper:step] 
 ```
 
@@ -78,27 +78,27 @@ var[lower:upper:step]
 
 In [5]:
 
-```
+```py
 s
 
 ```
 
 Out[5]:
 
-```
+```py
 'hello world'
 ```
 
 In [6]:
 
-```
+```py
 s[1:3]
 
 ```
 
 Out[6]:
 
-```
+```py
 'el'
 ```
 
@@ -108,14 +108,14 @@ Out[6]:
 
 In [7]:
 
-```
+```py
 s[1:-2]
 
 ```
 
 Out[7]:
 
-```
+```py
 'ello wor'
 ```
 
@@ -125,40 +125,40 @@ lower和upper可以省略，省略lower意味着从开头开始分片，省略up
 
 In [8]:
 
-```
+```py
 s[:3]
 
 ```
 
 Out[8]:
 
-```
+```py
 'hel'
 ```
 
 In [9]:
 
-```
+```py
 s[-3:]
 
 ```
 
 Out[9]:
 
-```
+```py
 'rld'
 ```
 
 In [10]:
 
-```
+```py
 s[:]
 
 ```
 
 Out[10]:
 
-```
+```py
 'hello world'
 ```
 
@@ -166,14 +166,14 @@ Out[10]:
 
 In [11]:
 
-```
+```py
 s[::2]
 
 ```
 
 Out[11]:
 
-```
+```py
 'hlowrd'
 ```
 
@@ -181,14 +181,14 @@ Out[11]:
 
 In [12]:
 
-```
+```py
 s[::-1]
 
 ```
 
 Out[12]:
 
-```
+```py
 'dlrow olleh'
 ```
 
@@ -196,14 +196,14 @@ Out[12]:
 
 In [13]:
 
-```
+```py
 s[:100]
 
 ```
 
 Out[13]:
 
-```
+```py
 'hello world'
 ```