程序
                <% 
                ' 以前写全文检索程序的时候写的. 
                ' 原创 by 飞鸟dev-club.com 
                ' Email: flybirddev-club.com 
' ie5.5 脚本引擎 required 
   dim patern 
   dim found 
   
   dim str 
   dim result 
   
   patern="(a)|(b)" 
   str=" A dog fall in love with a cat. Can you believe?" 
   result=""   
   call getMatchText(str,result,false) 
   Response.Write result 
   sub getMatchText(byref str,byref result,isNeedTrunc) 
     'on error resume next 
     Dim regEx, Match, Matches 
     dim tStr 
     Set regEx = New RegExp     ' 建立正则表达式。     
     regEx.Pattern = (patern)  ' 设置模式。 
     regEx.IgnoreCase = True     ' 设置是否区分字符大小写。 
     regEx.Global = True     ' 设置全局可用性。 
     Set Matches = regEx.Execute(str)  ' 执行搜索。   
     if err.number<>0 then 
       response.write "错误1:" & err.description 
       err.clear 
       exit sub 
     end if 
     if matches.count <>0 then 
       dim startIndex       
       dim myMatchValue 
       startIndex=1 
       for each match in matches 
         if (instr(str,match.value)>0) then 
           if instr(str,match.value)-50 >0 then 
             startIndex=instr(str,match.value)-50 
           else 
             startIndex=1 
           end if 
           myMatchValue=match.value 
           exit for 
         end if 
       next 
       if isNeedTrunc then 
         result= (mid(str,startIndex,strLength(myMatchValue)+100)) 
       else 
         result= (str)   
       end if 
       for each match in matches 
         if not(instr(result,"<font color=red>" & match.value & "</font>")>0) then 
           result=replace(result,match.value,"<font color=red>" & match.value & "</font>" ) 
         end if 
       next 
       found=true 
     else 
       found=false 
     end if   
     set regEx=nothing 
   end sub 
   
%>
 
  
 
 
  
