!/usr/bin/env python
coding=utf-8
s="中文"
if isinstance(s, unicode):
s=u"中文"
print s.encode('gb2312')
else:
s="中文"
print s.decode('utf-8').encode('gb2312')
s="中文"
if isinstance(s, unicode):
print s.encode('gb2312')
else:
print s.decode('utf-8').encode('gb2312')