DialogResult dr = MessageBox.Show("真的要退出？", "退出", MessageBoxButtons.YesNo, MessageBoxIcon.Question); if (dr == DialogResult.Yes) { MessageBox.Show("yes"); e.Cancel = false; } else { e.Cancel = true; }
MessageBox,布布扣,bubuko.com
MessageBox
原文：http://www.cnblogs.com/vienna/p/3615146.html
