repr. str, ascii in Python

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repr. str, ascii in Python

repr和str a="Hello" print(str(a)) print(repr(a)) 结果: Hello 'Hello' 可以看出,repr的结果中多了左右两个引号. repr和ascii 同样是返回字符串,如果是非 ASCII 编码的字符,repr()返回的是\x, \u,\U,这ascii()则不是.…

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>>> s = '1+2'>>> x = eval(s) #把引号剥离一次,就变成了运算1+2>>> x3>>> ss = str(s) #把字符串 s 再次使用 str 函数, 不产生变化>>> ss'1+2'>>> rr = repr(s) #把 s 使用 repr,会在外面再套上一个引号>>> rr"'1+2'">>> eval(ss)…

The bytes/str dichotomy in Python 3 [transport]

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