FilesExpand file tree

 master

/

list.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

39 lines (33 loc) · 909 Bytes

 master

/

list.py

Copy path

Top

File metadata and controls

• Code
• Blame

39 lines (33 loc) · 909 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

#!/usr/bin/python

#coding:utf-8

print dir(list);

arr = [];

arr.append(123);# 追加

arr.append(345);

print arr; #[123, 345]

print len(arr); #2

arr.pop(); # append 的反操作

print arr; #123

arr.pop();

for i in range(10):

arr.append(i);

# 遍历时需要读取下标 enumerate

for index, value in enumerate(['a', 'b', 'c']):

print 'index: %s, value: %s'% (index, value);

# 同时遍历两个或多个数组

for first, second in zip(['f_a', 'f_b'], ['s_a', 's_b']):

print 'first: %s, second: %s'%(first, second);

# 删除列表中下标为参数的值

arr.pop(3);

arr.pop(0);

print arr;

print arr.index(1); # 0

# print arr.index(19); # 报错。。。

print 10 * '*', 'filter map reduce', 10 * '*';

arr2 = [i for i in range(6)];

arrSum = reduce(lambda x, y: x + y, arr2, 0);

print arrSum;

arr2 = filter(lambda x: x % 2 == 1, arr2);

print arr2;

arr2 = map(lambda x: x * x, arr2);

print arr2;