代码如下： <!--脚本说明:第一步:把如下代码加入<head>区域中--> <SCRIPT LANGUAGE="JavaScript"> <!-- function birthday(year,month,date,person) { this.year=year this.month=month this.date=date this.person=person } function birthdaylist() { } blist=new birthdaylist() blist[0]= new birthday(84,1,16,"Matthew") blist[1]= new birthday(53,1,27,"Brenda") blist[2]= new birthday(82,3,1,"Ray") blist[3]= new birthday(88,4,27,"Michael") blist[4]= new birthday(86,9,2,"Andrew") blist[5]= new birthday(49,11,24,"Raymond") var now=new Date() today=new Date(now.getYear(),now.getMonth(),now.getDate()) // today 0:00:00 function daysFromToday(sdate) { return Math.round((sdate.getTime()-today.getTime())/(24*60*60*1000)) } function writeNextBirthday(list) { var daysToClosest=888 var closest for (var i in list) { thisDate=new Date(today.getYear(),list[i].month,list[i].date) if (daysFromToday(thisDate)<0) thisDate.setYear(today.getYear()+1) if (daysFromToday(thisDate)<daysToClosest) { daysToClosest=daysFromToday(thisDate) closest=i } } if (daysToClosest==0) document.write("<B>So today "+list[closest].person+" became "+(today.getYear()-list[closest].year)+" years old !! Hoorah!</B><P>") else if (daysToClosest==1) document.write("So tomorrow "+list[closest].person+" will become "+(today.getYear()-list[closest].year)+" !<P>") else document.write("So the next birthday will be "+list[closest].person+"'s, in "+daysToClosest+" days.<P>") } // end hiding --> </SCRIPT> <!--第二步:把如下代码加入<body>区域中--> <SCRIPT LANGUAGE="JavaScript"> <!-- writeNextBirthday(blist) // --> </SCRIPT>
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