元组的操作 

 1 #元组 只读列表，可循环查询，可切片。
 2 #儿子不能改，孙子可能可以改。
 3 tu = (1,2,3,'alex',[2,3,4,'taibai'],'egon')
 4 print(tu[3])
 5 print(tu[0:4])
 6 for i in tu:
 7     print(i)
 8 tu[4][3]=tu[4][3].upper()
 9 print(tu)
10 tu[4].append('sb')
11 print(tu)
12 
13 s = 'alex'
14 s1 = 'sb'.join(s)
15 print(s1)
16 #列表转化成字符串  list -----> str    join
17 li = ['taibai','alex','wusir','egon','女神',]
18 s = '++++'.join(li)
19 #str ----->list   split()
20 print(s)
21 
22 
23 #range  [1,2,3,4,5,6,.......100........]
24 
25 for i in range(3,10):
26     print(i)
27 for i in range(10):
28     print(i)
29 for i in range(0,10,3):
30     print(i)
31 for i in range(10,0,-2):
32     print(i)
33 for i in range(10,-1,-2):
34     print(i)
35 
36 li = [1,2,3,5,'alex',[2,3,4,5,'taibai'],'afds']
37 for i in li:
38     if type(i) == list:
39         for k in i:
40             print(k)
41     else:print(i)
42 
43 for i in range(len(li)):
44     if type(li[i]) == list:
45         for j in li[i]:
46             print(j)
47     else:print(li[i])

 

posted @ 2019-06-14 17:05  WuKongSir  阅读(34)  评论(0)    收藏  举报