怎么把python3的代码变成python2的代码 如何将python3转成python2
\u5982\u4f55\u628aPython2\u7684\u4ee3\u7801\u8f6c\u6362\u4e3aPython3\u7684\u4ee3\u7801\u53ef\u4ee5\u5229\u7528Python\u5185\u7f6e\u5de5\u51772to3.py\uff0c\u5e2e\u4f60\u81ea\u52a8\u5c06Python2\u7684\u4ee3\u7801\u8f6c\u6362\u4e3aPython3\u7684\u4ee3\u7801\u7684\u3002\u8fd9\u4e2a\u811a\u672c\u7684\u4f4d\u7f6e\u4f4d\u5728Python\u5b89\u88c5\u7684\u6839\u76ee\u5f55\Python27\Tools\Scripts\2to3.py\u3002
\u6bd4\u5982\u6211\u624b\u4e0a\u6709\u4e2aPython 2.x\u7684python\u811a\u672c\uff1aD:\tmp\transform.py
\u53ef\u4ee5\u901a\u8fc7\u6253\u5f00\u547d\u4ee4\u63d0\u793a\u7b26\uff0c\u5b9a\u4f4d\u81f3\u8be5\u8981\u8f6c\u6362\u7684\u811a\u672c\u76ee\u5f55\u4e0b\uff0c\u7136\u540e\u8fd0\u884c
2to3.py -w transform.py
\u5982\u679c\u4e0a\u8ff0\u4e0d\u52a0-w\u53c2\u6570\uff0c\u5219\u9ed8\u8ba4\u53ea\u662f\u628a\u8f6c\u6362\u8fc7\u7a0b\u6240\u5bf9\u5e94\u7684diff\u5185\u5bb9\u6253\u5370\u8f93\u51fa\u5230\u5f53\u524d\u7a97\u53e3\u800c\u5df2\u3002\u52a0\u4e86-w\uff0c\u5c31\u662f\u628a\u6539\u52a8\u5185\u5bb9\uff0c\u5199\u56de\u5230\u539f\u5148\u7684\u6587\u4ef6\u4e86\u3002
\u53ef\u4ee5\u5229\u7528Python\u5185\u7f6e\u5de5\u51772to3.py\uff0c\u5e2e\u4f60\u81ea\u52a8\u5c06Python2\u7684\u4ee3\u7801\u8f6c\u6362\u4e3aPython3\u7684\u4ee3\u7801\u7684\u3002\u8fd9\u4e2a\u811a\u672c\u7684\u4f4d\u7f6e\u4f4d\u5728Python\u5b89\u88c5\u7684\u6839\u76ee\u5f55\Python27\Tools\Scripts\2to3.py\u3002
可以利用Python内置工具2to3.py，帮你自动将Python2的代码转换为Python3的代码的。大部分是通用的，有的bif不一样，运行看哪里报错，核查一下就好了。
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