python获取一组汉字拼音首字母的方法

本文实例讲述了python获取一组汉字拼音首字母的方法。分享给大家供大家参考。具体实现方法如下：

#!/usr/bin/env python
# -*- coding: utf-8 -*-
def multi_get_letter(str_input):
 if isinstance(str_input, unicode):
   unicode_str = str_input
 else:
   try:
     unicode_str = str_input.decode('utf8')
   except:
     try:
       unicode_str = str_input.decode('gbk')
     except:
       print 'unknown coding'
       return
 return_list = []
 for one_unicode in unicode_str:
   return_list.append(single_get_first(one_unicode))
 return return_list
def single_get_first(unicode1):
 str1 = unicode1.encode('gbk')
 try:    
   ord(str1)
   return str1
 except:
   asc = ord(str1[0]) * 256 + ord(str1[1]) - 65536
   if asc >= -20319 and asc <= -20284:
     return 'a'
   if asc >= -20283 and asc <= -19776:
     return 'b'
   if asc >= -19775 and asc <= -19219:
     return 'c'
   if asc >= -19218 and asc <= -18711:
     return 'd'
   if asc >= -18710 and asc <= -18527:
     return 'e'
   if asc >= -18526 and asc <= -18240:
     return 'f'
   if asc >= -18239 and asc <= -17923:
     return 'g'
   if asc >= -17922 and asc <= -17418:
     return 'h'
   if asc >= -17417 and asc <= -16475:
     return 'j'
   if asc >= -16474 and asc <= -16213:
     return 'k'
   if asc >= -16212 and asc <= -15641:
     return 'l'
   if asc >= -15640 and asc <= -15166:
     return 'm'
   if asc >= -15165 and asc <= -14923:
     return 'n'
   if asc >= -14922 and asc <= -14915:
     return 'o'
   if asc >= -14914 and asc <= -14631:
     return 'p'
   if asc >= -14630 and asc <= -14150:
     return 'q'
   if asc >= -14149 and asc <= -14091:
     return 'r'
   if asc >= -14090 and asc <= -13119:
     return 's'
   if asc >= -13118 and asc <= -12839:
     return 't'
   if asc >= -12838 and asc <= -12557:
     return 'w'
   if asc >= -12556 and asc <= -11848:
     return 'x'
   if asc >= -11847 and asc <= -11056:
     return 'y'
   if asc >= -11055 and asc <= -10247:
     return 'z'
   return ''
def main(str_input):
 a = multi_get_letter(str_input)
 b = ''
 for i in a:
   b= b+i
 print b
if __name__ == "__main__":
 str_input=u'欢迎你'
 main(str_input)

希望本文所述对大家的Python程序设计有所帮助。