闹钟计时器(简易的闹钟提示)

usingSystem;usingSystem.Collections.Generic;usingSystem.ComponentModel;usingSystem.Data;usingSystem.Drawing;usingSystem.Linq;usingSystem.Text;usingSystem.Windows.Forms;usingSystem.Runtime.InteropServices;usingMicrosoft.VisualBasic;namespaceClockAlarm{publicpartialclassForm1:Form{public