判断字符串是否以中文字符开头

import re

def check_chinese(words):
    regex_str = ".*?([\u4E00-\u9FA5])"
    match_obj = re.match(regex_str, words)
    if match_obj:
        a=match_obj.group(1)
        if a:
           index= words.find(a)
           if index==0:
               return True
           else:
               return False
        else:
            return False



if __name__ == '__main__':
    print(check_chinese('自费'))