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protected void Button6_Click(object sender, EventArgs e)
    {
        this.Label11.Text = HtmlEncode(this.TextBox3.Text);
 
       
    }
    protected static string HtmlEncode(string the)
    {
   
        the = the.Replace("<", "&lt;");
        the = the.Replace(" ", "&nbsp;");
        the = the.Replace("\"", "&quot;");
        the = the.Replace("\'", "'");
        the = the.Replace("\n", "<br/> ");
        return the;
    }
ͨ¹ýÔÚ Page Ö¸Áî»ò ÅäÖýÚÖÐÉèÖà validateRequest=false
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<%@page validateRequest=false %>