替换文本中的指定内容(电子邮件)，以及其它指定的内容

 <div>
        <asp:TextBox ID="TextBox1" runat="server" Width="519px"></asp:TextBox><br />
        <asp:Button ID="Button1" runat="server" Text="Button" Width="65px"
            onclick="Button1_Click" /><br />
        <asp:TextBox ID="TextBox2" runat="server" Width="520px"></asp:TextBox>
    </div>

 

 

 protected void Button1_Click(object sender, EventArgs e)
        {
            Regex regex = new Regex(@"([/w-]+(/./w+)*@([/w-]+/.)+/w{2,3})", RegexOptions.IgnoreCase); 正则根据自己的需求进行更改。
           string str= regex.Replace(TextBox1 .Text, ""); 将textBox1文本框中的电子邮件替换为""，替换内容可自定义
           Match match = regex.Match(TextBox1.Text);  //匹配文本框的中电子邮件
           TextBox2.Text = match .Groups [0].Value ;  //取出文本框中的电子邮件
        }

 

 

 MatchCollection match = regex.Matches(str);  //匹配多条
            for (int i = 0; i < match.Count; i++)
            {
                //循环读取match内容
            }

 

//去除HTML标记

public static string StripAllTags(string stringToStrip)
    {
        stringToStrip = Regex.Replace(stringToStrip, "</p(?://s*)>(?://s*)<p(?://s*)>", "/n/n", RegexOptions.IgnoreCase | RegexOptions.Compiled);
        stringToStrip = Regex.Replace(stringToStrip, "<br(?://s*)/>", "/n", RegexOptions.IgnoreCase | RegexOptions.Compiled);
        stringToStrip = Regex.Replace(stringToStrip, "/"", "''", RegexOptions.IgnoreCase | RegexOptions.Compiled);
        stringToStrip = Regex.Replace(stringToStrip, "<[^>]+>", "", RegexOptions.IgnoreCase | RegexOptions.Compiled);
        stringToStrip = Regex.Replace(stringToStrip, "&[^;]+;", "", RegexOptions.IgnoreCase | RegexOptions.Compiled);

        return stringToStrip;
    }