【python】python判断句子是否含有中文 utf-8

#coding=utf-8def is_chinese(text):for c in text:"""判断一个unicode是否是汉字"""if c >= u'\u4e00' and c <= u'\u9fa5':return Truereturn Falsea=u'dsfa'
b=u'sdf士大夫'
print(is_chinese(a))
print(is_chinese(b))