请教下，在PB中想对一个字符串（ASWQWD223A-WQW22QRR-233-1WWW331S0-EEWW22DDFER）做如下操作，改怎么解决:
1、把字符串变为EEWW22DDFER-1WWW331S0-233-WQW22QRR-ASWQWD223A
2、去除字符串中的字符'-'，得到EEWW22DDFER1WWW331S0233WQW22QRRASWQWD223A
3、在得到的字符串前后分别加上ABCD和EFGH
最后得到ABCDEEWW22DDFER1WWW331S0233WQW22QRRASWQWD223AEFGH
最后对这串字符串进行MD5 32位加密
------解决方案--------------------
送你两个函数，gf_string2arry,拆字符串进数组，你的要求1，可以用这个拆成数组后反向循环，连接。要求2用gf_replace替换连接符，后边的自己加吧。MD5的加密网上一把，自己搜吧。另外，你的结贴率，令人害怕
global type gf_string2arry from function_object
end type
forward prototypes
global function integer gf_string2arry (string as_parmstring, string as_string, ref string as_parm[])
end prototypes
global function integer gf_string2arry (string as_parmstring, string as_string, ref string as_parm[]);//------------------------------------------
// 描述: 将以传进的参数as_string作为分隔符的string型参数串as_parmstring分解成独立参数并放入变长数组
//------------------------------------------
// 参数:
// value string as_parmstring 以as_string作分隔符的多参数组成的字符串(要求原始的string型独立参数内不得含有as_string字符)
// value string as_string 用与字符串中的分隔符号
// reference string as_parm[] 存放分解后的独立参数
//------------------------------------------
// 返回值: integer 成功，返回变量个数；否则，返回 -1
//------------------------------------------
integer li_finger,li_start=1,li_counter
if as_parmstring="" then return -1
li_finger=pos(as_parmstring,as_string,li_start)
do while li_finger>0
li_counter ++
as_parm[li_counter]=mid(as_parmstring,li_start,li_finger - li_start)
li_start=li_finger + 1
li_finger=pos(as_parmstring,as_string,li_start)
loop
if li_start<=len(as_parmstring) then
li_counter ++
as_parm[li_counter]=mid(as_parmstring,li_start,len(as_parmstring) - li_start +1)
end if
return li_counter
end function
global type gf_replace from function_object
end type
forward prototypes
global function string gf_replace (string source, string look_for, string replace_with)
end prototypes
global function string gf_replace (string source, string look_for, string replace_with);//*********************************************************************
//* Program Id : [ ]
//* Function :
//* Program By : PowerSoft
//* Windows :
//* Data Windows:
//* Modification
//* Description : A String Occurrence Search and Replace Routine
//* The following code demonstrates a string occurrence search and replace routine.
//* This routine works generically for any string. For example,
//* if old_str = "red" and new_str = "green", all occurrences of
//* "red" inside of mystring will be replaced with "green".