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Input是个内建函数：
>>> input <built-in function input> >>> |
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具体用法：接收用户输入的内容，输入的字符串，接收到就是字符串；输入的是数字，接收的就是数字
>>> name = input("please input your name:") please input your name:like >>> name ‘like‘ >>> print(name) like >>> |
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eval用法：可以接收之前定义的变量，结合input使用
>>> eval(‘name‘) ‘lk‘ >>> eval(input("please input your name:")) please input your name:name ‘lk‘ |
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如果输入的是之前未定义的变量，将报错：
>>> eval(input("please input your name:")) please input your name:lk Traceback (most recent call last): File "<stdin>", line 1, in <module> File "<string>", line 1, in <module> NameError: name ‘like‘ is not defined >>> a = 5 >>> eval(input("please input your name:")) please input your name: a 5 |
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原文地址：http://www.cnblogs.com/lk-b/p/5901842.html
