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void btnExit_Click(object sender, EventArgs e)
{
var frm = new ConfirmForm(this);
using (frm)
{
frm.ShowDialog();
frm.Disposed += frm_Disposed; //想测试如果手动+=了事件但不做-=会不会造成内存泄漏,要如何做?
}
Close();
}
void frm_Disposed(object sender, EventArgs e) { MessageBox.Show("disposed"); }
var frm = new ConfirmForm(this);
while (true)
{
frm.Disposed +=this.frm_Disposed;
Thread.sleep(5);
}