date对象设置set

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    <title>date对象设置set</title>
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    <script>
        var today=new Date();
        var weeks=["","","","","","",""];
        //today.setFullYear(2222);//设置年份为2222
        //document.write(today.getFullYear()+"<br />");//2222
        //today.setMonth(13);//设置月份为13
        //document.write(today.getMonth()+"<br />");//1,月份超过12后会自动进入下一年
        //document.write(today.getFullYear()+"<br />");//2223,因上面设置的月份为13,而增加1年
        //获取明年的今天是星期几
        //today.setFullYear(today.getFullYear()+1);//将今天获取的年份+1
        //document.write(weeks[today.getDay()]);//输出年份+1后的时间
        //获取其他时间
        var year=today.getFullYear();
        var month=today.getMonth()+1;
        var date=today.getDate();
        //时,分,秒…………省略
        var tim=new Date(year-1,month,date+50);//去年:今年-1;50天后:今天+50;
        document.write("去年的今天50天后是:"+tim.getFullYear()+""+tim.getMonth()+""+tim.getDate()+"日 星期"+weeks[tim.getDay()]);
    </script>
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转载自www.cnblogs.com/vinson-blog/p/12032154.html