JS关于时间日期

  1. 把下面全部代码放到期<body>中就可以获取当前日期+星期

<script>

function writeDateInfo()

{

        var day="";

        var month="";

        var ampm="";

        var ampmhour="";

        var myweekday="";

        var year="";

        mydate=new Date();

        myweekday=mydate.getDay();

        mymonth=mydate.getMonth()+1;

        myday= mydate.getDate();

        myyear= mydate.getYear();

        year=(myyear > 200) ? myyear : 1900 + myyear;

        if(myweekday == 0)

        weekday=" 星期日";

        else if(myweekday == 1)

        weekday=" 星期一";

        else if(myweekday == 2)

        weekday=" 星期二";

        else if(myweekday == 3)

        weekday=" 星期三";

        else if(myweekday == 4)

        weekday=" 星期四";

        else if(myweekday == 5)

        weekday=" 星期五";

        else if(myweekday == 6)

        weekday=" 星期六";

        document.write(year+"年"+mymonth+"月"+myday+"日"+weekday);

}

</script>

<script>writeDateInfo();</script>

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javascript编写方法，传入年月日，返回星期几

 

<htm>

<head>

<script language="javascript">

function GetWeek(year, month, day) {

var time1 = new Date(year, month, day);

var week = time1.getDay();

if (week == 0)

    week = "日";

else if (week == 1)

    week = "一";

else if (week == 2)

    week = "二";

else if (week == 3)

    week = "三";

else if (week == 4)

    week = "四ff";

else if (week == 5)

    week = "五";

else if (week == 6)

    week = "六";

return week;

}

</script>

<script language="javascript">

function showDay(){

var year=document.getElementById("year").value;

var month=document.getElementById("month").value;

var day=document.getElementById("day").value;

    document.write(GetWeek(year,month-1,day));

}

</script>

</head>

<body>

年：<input type="text" id="year" /></br>

月：<input type="text" id="month" /></br>

日：<input type="text" id="day" /></br>

<input type="button" onclick="showDay()" value="显示星期几" />

</body>

</html>

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用js将字符串数组的值赋给select的options

//returnValue是数组

 for (var i = 0; i < returnValue.length; i++) {

        var op = document.createElement('OPTION');

        op.text = returnValue[i].name; ;

        op.value = returnValue[i].id;

        document.getElementById("selectedProject").appendChild(op);

    }

posted @ 2013-11-26 23:41  weifb  阅读(107)  评论(0)    收藏  举报