C#提取HTML代码中的文字

C#提取HTML代码中的文字

 
C#提取HTML代码中的文字
 


/// <summary>


  /// 去除HTML标记


  /// </summary>


  /// <param name="strHtml">包括HTML的源码 </param>


  /// <returns>已经去除后的文字</returns>


  public static string StripHTML(string strHtml)


  {


   string [] aryReg ={


          @"<script[^>]*?>.*?</script>",




          @"<(\/\s*)?!?((\w+:)?\w+)(\w+(\s*=?\s*(([""'])(\\[""'tbnr]|[^\7])*?\7|\w+)|.{0})|\s)*?(\/\s*)?>",


          @"([\r\n])[\s]+",


          @"&(quot|#34);",


          @"&(amp|#38);",


          @"&(lt|#60);",


          @"&(gt|#62);", 


          @"&(nbsp|#160);", 


          @"&(iexcl|#161);",


          @"&(cent|#162);",


          @"&(pound|#163);",


          @"&(copy|#169);",


          @"&#(\d+);",


          @"-->",


          @"<!--.*\n"


         


         };




   string [] aryRep = {


           "",


           "",


           "",


           "\"",


           "&",


           "<",


           ">",


           " ",


           "\xa1",//chr(161),


           "\xa2",//chr(162),


           "\xa3",//chr(163),


           "\xa9",//chr(169),


           "",


           "\r\n",


           ""


          };




   string newReg =aryReg[0];


   string strOutput=strHtml;


   for(int i = 0;i<aryReg.Length;i++)


   {


    Regex regex = new Regex(aryReg[i],RegexOptions.IgnoreCase );


    strOutput = regex.Replace(strOutput,aryRep[i]);


   }




   strOutput.Replace("<","");


   strOutput.Replace(">","");


   strOutput.Replace("\r\n","");






   return strOutput;


  }