public Form2(Form1 form1)
{
this.form1 = form1;
InitializeComponent();
loginWin = new LoginWin();
registerWin = new RegisterWin();
groupBox = this.groupBox1;
}
private void label2_Click(object sender, EventArgs e)
{//登录
form2 = new Form2(this);
LoginWin loginWin = form2.loginWin;
form2.Show();
loginWin.Show();
form2.groupBox.Controls.Clear();
form2.groupBox.Controls.Add(loginWin);
}
