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。