python判断字符串是否包含字母

#-*- coding:utf-8 -*-import re 

def check(str):

  my_re = re.compile(r'[A-Za-z]',re.S)

  res = re.findall(my_re,str)

  if len(res):

      print u'含有英文字符'

  else:

      print u'不含有英文字符'if __name__ == '__main__':

  str = '你好123hello'

  check(str)

  str1 = '你好123'

  check(str1)

#-*- coding:utf-8 -*-def check(str):

    str_1 = list(str)

    for i in str_1:

        if i.isalpha():

            print '*'*15

            print u'含有英文字符'

            breakif __name__ == '__main__':

    str = '你好123'

    check(str)

    #*********************************

    str1 = '你好123hello world'

    check(str1)