異常處理，catch(Exception ex)中的ex.Message怎樣在alert中調用到？解决思路

異常處理，catch(Exception ex)中的ex.Message怎樣在alert中調用到？
...
    catch(Exception   ex)
    {
        Response.Write(@ " <script> javascript:alert( 'System   is   wrong,wrong   is   ' "+ex.Message+ " '! ') </script> ");
    }
在上面代碼中，Response.Write(@ " <script> javascript:alert( 'System   is   wrong,wrong   is   "+ex.Message+ "! ') </script> ");寫得不行，會出錯，請問怎樣用javascript的alert拋出詳細異常ex.Message?

謝謝!


[解决办法]
如果还不行。string errMsg= "System is wrong,it is "+ex.Message;errMsg = errMsg.Replace( "\r\n ", "\\r\\n ");errMsg = errMsg.Replace( " ' ", "\\ ' ");