2020-10-19 21:08:55

docs/da/077.md

@@ -4,7 +4,7 @@
 
 In [1]:
 
-```
+```py
 import operator as op
 
 ```
@@ -15,12 +15,12 @@ import operator as op
 
 In [2]:
 
-```
+```py
 print reduce(op.add, range(10))
 
 ```
 
-```
+```py
 45
 
 ```
@@ -29,12 +29,12 @@ print reduce(op.add, range(10))
 
 In [3]:
 
-```
+```py
 print reduce(op.mul, range(1,10))
 
 ```
 
-```
+```py
 362880
 
 ```
@@ -43,7 +43,7 @@ print reduce(op.mul, range(1,10))
 
 In [4]:
 
-```
+```py
 my_list = [('a', 1), ('bb', 4), ('ccc', 2), ('dddd', 3)]
 
 # 标准排序
@@ -57,7 +57,7 @@ print sorted(my_list, key=lambda x: len(x[0]))
 
 ```
 
-```
+```py
 [('a', 1), ('bb', 4), ('ccc', 2), ('dddd', 3)]
 [('a', 1), ('ccc', 2), ('dddd', 3), ('bb', 4)]
 [('a', 1), ('bb', 4), ('ccc', 2), ('dddd', 3)]
@@ -70,7 +70,7 @@ print sorted(my_list, key=lambda x: len(x[0]))
 
 In [5]:
 
-```
+```py
 from functools import partial
 
 # 将 reduce 的第一个参数指定为加法，得到的是类似求和的函数
@@ -84,7 +84,7 @@ print prod_([1,2,3,4])
 
 ```
 
-```
+```py
 10
 24
 
@@ -98,7 +98,7 @@ print prod_([1,2,3,4])
 
 In [6]:
 
-```
+```py
 from itertools import cycle, groupby, islice, permutations, combinations
 
 ```
@@ -107,12 +107,12 @@ from itertools import cycle, groupby, islice, permutations, combinations
 
 In [7]:
 
-```
+```py
 print list(islice(cycle('abcd'), 0, 10))
 
 ```
 
-```
+```py
 ['a', 'b', 'c', 'd', 'a', 'b', 'c', 'd', 'a', 'b']
 
 ```
@@ -121,7 +121,7 @@ print list(islice(cycle('abcd'), 0, 10))
 
 In [8]:
 
-```
+```py
 animals = sorted(['pig', 'cow', 'giraffe', 'elephant',
                   'dog', 'cat', 'hippo', 'lion', 'tiger'], key=len)
 
@@ -132,7 +132,7 @@ print
 
 ```
 
-```
+```py
 3 ['pig', 'cow', 'dog', 'cat']
 4 ['lion']
 5 ['hippo', 'tiger']
@@ -145,12 +145,12 @@ print
 
 In [9]:
 
-```
+```py
 print [''.join(p) for p in permutations('abc')]
 
 ```
 
-```
+```py
 ['abc', 'acb', 'bac', 'bca', 'cab', 'cba']
 
 ```
@@ -159,12 +159,12 @@ print [''.join(p) for p in permutations('abc')]
 
 In [10]:
 
-```
+```py
 print [list(c) for c in combinations([1,2,3,4], r=2)]
 
 ```
 
-```
+```py
 [[1, 2], [1, 3], [1, 4], [2, 3], [2, 4], [3, 4]]
 
 ```