using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;

using WF_BLL;
using WF_Model;
using System.Text.RegularExpressions;

public partial class Login : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }

protected void btn_Login_Click(object sender, EventArgs e)
    {
        if (!（checking(this.txt_Username.Text.Trim()) || checkings(this.txt_Username.Text.Trim())))
        {
            Response.Write("<script> alert('只能是数字、字母、下划线、汉字！')</script>");
        }
        else
        {
            UserInfo info = new UserInfo();
            info.UserName = this.txt_Username.Text.Trim();
            info.PassWord = this.txt_Password.Text.Trim();

            Login_BLL login = new Login_BLL();
            bool value = login.Login(info);
            if (!value)
            {
                Response.Write("<script> alert('注册成功！')</script>");
            }
            else
            {
                Response.Write("<script> alert('注册失败！')</script>");
            }
        }
    }

    public static bool checking(string strings) 
    {
        return Regex.IsMatch(strings, @"^[0-9a-zA-Z_]+$");
    }
    public static bool checkings(string strings) 
    {
        return Regex.IsMatch(strings, @"^[\u4e00-\u9fa5],{0,}$");
    }
}