html head titletitle/title /head body script type="text/javascript" function flashTitle(){ time=new Date(); str=time.getHours()+":"+time.getMinutes()+":"+time.getSeconds(); document.title=""+str; setTimeout("flashTitle()",1000); } flashTitle(); /script /body /ht ...
long startTime=System.currentTimeMillis(); //获取开始时间 doSomeThing(); //测试的代码段 long endTime=System.currentTimeMillis(); //获取结束时间 System.out.println("程序运行时间: "+(end-start)+"ms");