字符串格式化 %s format

 1 # 字符串格式化
 2 #%s
 3 
 4 
 5 # s = 'i am a %s ii iii  jjj' %'kkkkkk'
 6 # print(s)
 7 
 8 # s = 'i am a  ii iii  jjj' + 'kkkkkk'
 9 # print(s)
10 
11 # n = 'i am a %s ii iii  jjj %s' % ('pp','pppo')
12 # print(n)
13 
14 # s = 'i am a %s ii iii  jjj %s' % ('pp','89')
15 # print(s)
16 #
17 # %d只能接收数字
18 
19 
20 # 打印浮点数
21 # i= "percent %.7f" % 12.13213546546
22 # print(i)
23 
24 
25 
26 # i= "percent %.3s" % 'abcdefg'   截取字符串
27 # print(i)
28 # percent abc
29 
30 #打印百分比
31 # i = "percent %.3f %%" % 12.123456789
32 # print(i)
33 
34 #用字典的k 值进行拼接
35 
36 #print('rooot','a','b','c',sep=':')   # 输出的值为  rooot:a:b:c
37 
38 
39 
40 #format字符串格式化
41 
42 # i = 'i am {}, {}, {}, opopop'.format('hahah','heihiehie','啦啦啦啦啦啦')  需要一一对应
43 # print(i)
44 
45 #可按指定顺序进行连接
46 #i = 'i am {2}, {1}, {0}, opopop'.format('hahah', 'heihiehie', '啦啦啦啦啦啦')
47 #print(i)
48 
49 #字典形式格式化
50 # i = 'i am {name},age{age},really{name}'.format(**{'name' :'77','age':'pppppppppp'})
51 # print(i)
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