返回字串的拼音首字母

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file://函数名：gf_getfirstletter(string)
file://功能：返回字串的拼音首字母,支持混合字符串(可以包含非汉字)
file://参数：as_inputstring
file://返回值：string
file://created 大同 张和平 dtzhp@yeah.net
//////////////////////////////////////////////////////////////
long i
string ls_ch,ls_returnStr
For i=1 to Len(as_InputString)                 file://依次处理as_InputString中每个字符
    ls_ch=Mid(as_InputString , i , 1)     
      If ls_ch < "啊"  then                      //  非汉字
          ls_returnStr = ls_returnStr+ls_ch    //  不变
      Elseif    ls_ch >= "啊" and ls_ch <= "座"  then         file://处理一级汉字
     CHOOSE CASE ls_ch
        CASE is >= @#匝@#
      ls_returnStr += "z"
        CASE is >= @#压@#
      ls_returnStr += "y"
        CASE is >= @#昔@#
      ls_returnStr += "x"
        CASE is >= @#挖@#
      ls_returnStr += "w"
        CASE is >= @#塌@#
      ls_returnStr += "t"
        CASE is >= @#撒@#
      ls_returnStr += "s"
        CASE is >= @#然@#
      ls_returnStr += "r"
        CASE is >= @#期@#
      ls_returnStr += "q"
        CASE is >= @#啪@#
      ls_returnStr += "p"
        CASE is >= @#哦@#
      ls_returnStr += "o"
        CASE is >= @#拿@#
      ls_returnStr += "n"
        CASE is >= @#妈@#
      ls_returnStr += "m"
        CASE is >= @#垃@#
      ls_returnStr += "l"
        CASE is >= @#喀@#
      ls_returnStr += "k"
        CASE is >= @#击@#
      ls_returnStr += "j"
        CASE is >= @#哈@#
      ls_returnStr += "h"
        CASE is >= @#噶@#
      ls_returnStr += "g"
        CASE is >= @#发@#
      ls_returnStr += "f"
        CASE is >= @#蛾@#    
      ls_returnStr += "e"
        CASE is >= @#搭@#   
      ls_returnStr += "d"
        CASE is >= @#擦@#  
      ls_returnStr += "c"
        CASE is >= @#芭@#  
      ls_returnStr += "b"
        CASE is >= @#啊@#  
      ls_returnStr += "a"
     END CHOOSE
//  elseif ls_ch > "座" then      file://处理一级汉字
//   select py into :ls_py from piyin where hanzi = :ls_ch;
     End if
//          i = i+1                 file://PB8不用此句，而PB65要用， 指向下一个汉字

Next                          
RETURN ls_returnStr

 

原文转自：http://www.ltesting.net