public UserInfo[] users=new UserInfo[10];   //创建长度为0的数组
       private void FrmLogin_Load(object sender, EventArgs e)     //双击窗体
       {
           //01.给数组的前3个位置赋值
           InitDataToArray();  
          
       }
 
       private void InitDataToArray()    //为数组赋初值的方法
       {
           UserInfo user1=new UserInfo();     //赋值第一种方法
           user1.Uid = 1;
           user1.Uemail = "1";
           user1.Upwd = "1";
           //让游离的  user1对象    归属于  users数组
           users[0] = user1;
 
           users[1] = new UserInfo();       //赋值的第二种方法
           users[1].Uid = 2;
           users[1].Uemail = "2";
           users[1].Upwd = "2";
 
          
       }

private void btnLogin_Click(object sender, EventArgs e)     //双击登陆按钮
       {
           //1.0     一个标记，代表登录结果
           bool flag = false;
           //1.1     如何判定用户录入的 邮箱和  密码是正确的
           string email = txtEmail.Text;
           string pwd = txtPwd.Text;
           //1.2     循环遍历数组，依次取出每一项   item
           foreach (UserInfo item in users)
           {
                //1.3  每一个item代表一个UserInfo对象
               if (item!=null)
               {
                   if (item.Uemail.Equals(email)&&item.Upwd.Equals(pwd))
                   {
                       //证明   邮箱   和密码   都是匹配的
                       flag = true; 
                   }
               }
           }
           //    1.4  除了循环，判定flag是真还是假
           if (flag==true)
           {
               //进入主窗体
               FrmMain frm=new FrmMain();
               frm.email = txtEmail.Text;
               frm.Show();
           }
           else
           {
               MessageBox.Show("登录失败");
           }

private void llbRegist_LinkClicked(object sender,LinkLabelLinkClickedEventArgs e)   // 双击注册按钮
       {
           //01. 自身隐藏
           //this 代表的当前窗体对象   
           this.Hide();
           //02.让注册显示
           FrmRegister frm=new FrmRegister();
           frm.login = this;
           frm.Show();
       }

//定义窗体对象保存logininfo窗体传过来的值
public FrmLogin fl;
//点击注册触发的事件
private void btnregin_Click(object sender, EventArgs e)   //双击注册战网
{
    
    if (ProvingInfo() == true)
    {
        //获取文本框中对应的值
        string name = txtname.Text;
        string email = txtemail.Text;
        string cid = txtcid.Text;
        string password = txtpassword.Text;
        LoginInfo info = new LoginInfo();
       info.Name = name;
        info.Id = cid;
        info.Email = email;
       info.Password = password;
        MessageBox.Show("注册成功!");
        for (int i = 0; i < LoginInfo.array.Length; i++)
        {
            if (LoginInfo.array[i] == null)
            {
                LoginInfo.array[i] = info;
                break;
            }
        }
 
    }
}
//验证填写信息
public bool ProvingInfo()
{ 
     if(txtname.Text.Trim().Equals(string.Empty))
     {
         MessageBox.Show("请填写姓名");
         this.txtname.Focus();
         return false;
     }
     else if(txtcid.Text.Trim().Equals(string .Empty))
     {
         MessageBox.Show("请填身份证号码");
         this.txtcid.Focus();
         return false;
     
     }
     else if (txtemail.Text.Trim().Equals(string.Empty))
     {
         MessageBox.Show("请填身份证号码");
         this.txtemail.Focus();
         return false;
 
     }
     else if (txtpassword.Text.Trim().Equals(string.Empty))
     {
         MessageBox.Show("请填写密码");
         this.txtpassword.Focus();
         return false;
 
     }
     else if (txtone.Text.Trim().Equals(string.Empty))
     {
         MessageBox.Show("请确认邮箱输入");
         this.txtone.Focus();
         return false;
 
     }
     else if (txtokone.Text.Trim().Equals(string.Empty))
     {
         MessageBox.Show("请确认密码输入");
         this.txtokone.Focus();
         return false;
 
     }
     else if (!txtemail.Text.Equals(txtone.Text))
     {
         MessageBox.Show("两次输入的邮箱不一致");
         return false;
     }
     else if(!txtpassword.Text.Equals(txtokone.Text))
     {
      MessageBox.Show("两次输入的密码不一致");
      return false;
     }
     else
    {
        return true;
     }

//定义变量保存窗体传过来的值
       public string loginame;
       //Load事件
       private void FrmMain_Load(object sender, EventArgs e)  //双击窗体
       {
           //给label控件赋值
           lblloginname.Text = "欢迎" + loginame + "来到魔兽世界";
       }