Python 判断字符串中是否包含中文

#!/usr/bin/python
# -*- coding: utf-8 -*-

import re

zh_pattern = re.compile(u'[\u4e00-\u9fa5]+')

def contain_zh(word):
'''
判断传入字符串是否包含中文
:param word: 待判断字符串
:return: True:包含中文  False:不包含中文
'''
word = word.decode()
global zh_pattern
match = zh_pattern.search(word)

return match

if __name__ == '__main__':
word1 = 'ceshi,测试'
word2 = 'ceshi,ceshi'

if contain_zh(word1):
print '%s 里面有中文' % word1
if contain_zh(word2):
print '%s 里面有中文' % word2