fsdsfds/WindowsFormsApp1/Menu.cs

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 WindowsFormsApp1
{
    public partial class Menu : Form
    {
        public Menu()
        {
            InitializeComponent();
        }

        private void Forma_Click(object sender, EventArgs e)
        {
            aaa frm = new aaa();
            frm.Show();
            Hide();


        }

        private void Forma1_Click(object sender, EventArgs e)
        {
           @as frm = new @as ();
            frm.Show();
            Hide();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void test_Click(object sender, EventArgs e)
        {
            Test frm = new Test();
            frm.Show();
            Hide();
        }
    }
}