python 字符串的显示
做个小总结:
可能是我还没找到更好的方法,但是小遗憾的是,python似乎目前无法支持类似shell脚本,perl
所支持的标量内插,所以在显示的时候无法像下面,这种个人感觉,最清晰,方便的方法。
比如,用户输人2个变量‘basketball', 'swimming', shell或者per可以如下显示出 I love basketball and swimming the best.
#shell
input = 'basketball'
input2 = 'swimming'
print 'I love $input and $input2 the best'
#perl
$input = 'basketball'
$input2 = 'swimming'
print 'I love $input and $input2 the best'
那么python 中如何显示呢,有如下方法,按需选择吧,希望以后能直接支持类似sell脚本的显示方法,把$看作转义符:)
1 import sys
2 input = sys.argv[1]
3 input2 = sys.argv[2]
4
5 s = 'I love ' + input + ' and ' + input2 + ' the best'
6 print(s)
7
8 s = 'I love %s and %s the best'%(input, input2)
9 print(s)
10
11 params= {'input': input, 'input2': input2 }
12 s = 'I love %(input)s and %(input2)s the best'%params
13 print(s)
14
15
16 from string import Template
17 s = Template('I love $input and $input2 the best')
18 s =s.substitute(input=input, input2=input2)
19 print(s)
2 input = sys.argv[1]
3 input2 = sys.argv[2]
4
5 s = 'I love ' + input + ' and ' + input2 + ' the best'
6 print(s)
7
8 s = 'I love %s and %s the best'%(input, input2)
9 print(s)
10
11 params= {'input': input, 'input2': input2 }
12 s = 'I love %(input)s and %(input2)s the best'%params
13 print(s)
14
15
16 from string import Template
17 s = Template('I love $input and $input2 the best')
18 s =s.substitute(input=input, input2=input2)
19 print(s)