摘要：
CodeCode highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->1privatevoidFrmMain_FormClosing(objectsender,FormClosingEventArgse)2{3{4if(MessageBox.Show("您确定要退出系统吗？"5,"询问"6,MessageBoxButtons.YesNo7,MessageBoxIcon.Question8,MessageBoxDefa 阅读全文