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分享using System;
using System.Windows.Forms;
namespace WinForm
{
public partial class Form1 : Form
{
private Form2 form2 = new Form2();
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
VisibleChanged += new EventHandler(Form1_VisibleChanged);
}
void Form1_VisibleChanged(object sender, EventArgs e)
{
form2.Visible = Visible;
}