using System;
using System.Text;
using System.Text.RegularExpressions;
using System.Web;
using System.Security.Cryptography;

//该源码下载自www.51aspx.com(５１ａｓｐｘ．ｃｏｍ)

namespace Help.Common
{
    public class Public
    {
        /// <summary>
        /// 去除字符串最后一个','号
        /// </summary>