python字符串格式化

字符串格式化

 1 # msg='i am %s my hobby is %s' % ('lhf','alex')
 2 # print(msg)
 3 #
 4 # msg='i am %s my hobby is %s' % ('lhf',1)
 5 # msg='i am %s my hobby is %s' % ('lhf',[1,2])
 6 # print(msg)
 7 # name='lhf'
 8 # age=19
 9 # msg='i am %s my hobby is %s' % (name,age)
10 # print(msg)
11 
12 #打印浮点数
13 # tpl = "percent %.2f" % 99.976234444444444444
14 # print(tpl)
15 
16 #打印百分比
17 # tpl = 'percent %.2f %%' % 99.976234444444444444
18 # print(tpl)
19 
20 # tpl = "i am %(name)s age %(age)d" % {"name": "alex", "age": 18}
21 # print(tpl)
22 
23 # msg='i am %(name)+5s my hobby is alex' %{'name':'lhf'}
24 # print(msg)
25 #
26 # msg='i am 33[43;1m%(name)+60s33[0m my hobby is alex' %{'name':'lhf'}
27 # print(msg)
28 
29 
30 # print('root','x','0','0',sep=':')
31 # print('root'+':'+'x'+':'+'0','0')

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格式化函数format()

 1 # tpl = "i am {name}, age {age}, really {name}".format(name="seven", age=18)
 2 # print(tpl)
 3 #
 4 # tpl = "i am {name}, age {age}, really {name}".format(**{"name": "seven", "age": 18})
 5 # print(tpl)
 6 # tpl = "i am {:s}, age {:d}".format(*["seven", 18])
 7 # print(tpl)
 8 # tpl = "i am {:s}, age {:d}".format("seven", 18) #["seven", 18]
 9 # print(tpl)
10 #
11 # l=["seven", 18]
12 # tpl = "i am {:s}, age {:d}".format('seven',18)
13 # print(tpl)
14 
15 # tpl = "numbers: {:b},{:o},{:d},{:x},{:X}, {:%},{}".format(15, 15, 15, 15, 15, 15.87623, 2)
16 # print(tpl)

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