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3.4字符串格式输出-小嘉欣的博客-51CTO博客
source link: http://blog.51cto.com/10777193/2069602
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实例#-*-coding:utf-8-*-__date__='2018/2/615:19'__author__='xiaojiaxin'__file_name__='string1'a=input()ifa.isdigit():print(a)print(type(a))else:print("notdigit!")输入:1dnotdigit!输入:200200<class'str&
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