魔兽登录系统

FrmLogin界面：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace day01_0100魔兽登陆
{
    public partial class FrmLogin : Form
    {
        public FrmLogin()
        {
            InitializeComponent();
        }

        private void label2_Click(object sender, EventArgs e)
        {
            FrmRegist fr = new FrmRegist();
            fr.fl = this;
            fr.Show();
            this.Hide();
        }
        //存储登录用户信息的对象数组
        public LoginInfo[] array;
        private void FrmLogin_Load(object sender, EventArgs e)
        {
            //初始用户信息
            array = new LoginInfo[10];
            LoginInfo info1 = new LoginInfo();
            info1.Name = "孙丽丽";
            info1.Id = "12345678";
            info1.Email = "123@qq.com";
            info1.Password = "123456";
            array[0] = info1;
        }

        private void btnLogin_Click(object sender, EventArgs e)
        {
            if (txtEmail.Text.Trim() == "" || txtPwd.Text.Trim() == "")
            {
                MessageBox.Show("用户名密码不能为空", "提示");
            }
            else
            {
                string userName = txtEmail.Text;
                string pwd = txtPwd.Text;
                bool isOK = false;
                foreach (LoginInfo item in array)
                {
                    if (item != null)
                    {
                        if (item.Email == userName && item.Password == pwd)
                        {

                            isOK = true;
                            FrmMain fm = new FrmMain();
                            fm.bt = "欢迎" + item.Name;
                            fm.Show();
                            break;
                        }
                    }
                }
                if (isOK == false)
                {
                    lblPwd.Visible = true;
                    txtPwd.Text = "";
                    txtPwd.Focus();
                }
            }
        }
    }
}

 FrmRegist界面：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace day01_0100魔兽登陆
{
    public partial class FrmRegist : Form
    {
        public FrmRegist()
        {
            InitializeComponent();
        }
        public FrmLogin fl;
        private void btnRegist_Click(object sender, EventArgs e)
        {
            //LoginInfo info = new LoginInfo();
            MessageBox.Show("恭喜,通过验证!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
            for (int i = 0; i < fl.array.Length; i++)
            {
                if (fl.array[i] == null)
                {
                    fl.array[i] = new LoginInfo();
                    fl.array[i].Name = textBox1.Text;
                    fl.array[i].Password = textBox4.Text;
                    fl.array[i].Email = textBox3.Text;
                    break;
                }
            }
            fl.Visible = true;
            this.Close();
        }
    }
}

FrmMain界面：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace day01_0100魔兽登陆
{
    public partial class FrmMain : Form
    {
        public FrmMain()
        {
            InitializeComponent();
        }
        public string bt;
        private void FrmMain_Load(object sender, EventArgs e)
        {
            label1.Text=bt;
        }
    }
}