as far as i know >>> u'中国'.encode('utf-8') '\xe4\xb8\xad\xe5\x9b\xbd'
so,'\xe4\xb8\xad\xe5\x9b\xbd' is the utf-8 of '中国' >>> u'中国'.encode('gbk') '\xd6\xd0\xb9\xfa' so,'\xd6\xd0\xb9\xfa' is the utf-8 of '中国' >>> u'中国' u'\u4e2d\u56fd' what is the meaning of u'\u4e2d\u56fd'? u'\u4e2d\u56fd' = \x4e2d\x56fd ??
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