function clockon(clock){

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var bgclock = document.getElementById(clock);
var now = new Date();
var year = now.getYear();
var month = now.getMonth();
var date = now.getDate();
var day =now.getDay();
var hour = now.getHours();
var minu = now.getMinutes();
var sec = now.getSeconds();
var week;
month = month+1;
if(month10)month="0"+month;
if(date10)date="0"+date;
if(hour10)hour="0"+hour;
if(minu10)minu="0"+minu;
if(sec10)sec ="0"+sec;
var arr_week=new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六");
week = arr_week[day];
var time=""
time=year+"年"+month+"月"+date+"日"+week+""+hour+":"+minu+":"+sec;
if(document.all){
bgclock.innerHTML="【"+time+"】"
}
var timer = setTimeout("clockon('bgclock')",200);
}
var?myData?=?new?Date();?//?是Date不是Data
var?day?=?myData.getDay();?//?要括號
alert(day);
!DOCTYPE?html
html?lang="en"
head
meta?charset="UTF-8"
meta?name="viewport"?content="width=device-width,?initial-scale=1.0"
meta?http-equiv="X-UA-Compatible"?content="ie=edge"
titleDocument/title
/head
body
input?id="y"?type="text"?placeholder="年"?/?input?id="m"?type="text"?placeholder="月"?/
nput?id="d"?type="text"?placeholder="日"?/?br?/?input?type="button"?id="btn"?value="計算星期幾"?/?input?type="text"
id="w"?placeholder="星期幾"
script
var?y?=?document.getElementById('y');
var?m?=?document.getElementById('m');
var?d?=?document.getElementById('d');
var?w?=?document.getElementById('w');
var?btn?=?document.getElementById('btn');
btn.onclick?=?function?()?{
var?a?=?'';
a?=?y.value?+?'/'?+?m.value?+?'/'?+?d.value;
var?date?=?new?Date(a);
var?week?=?["星期日",?"星期一",?"星期二",?"星期三",?"星期四",?"星期五",?"星期六"];
w.value?=?week[date.getDay()];
}
/script
/body
/script
/body
/html
var a = new Array("日", "一", "二", "三", "四", "五", "六");
var dt = new Date(2014, 1, 1) 根據(jù)輸入的值生成對象
var week = dt.getDay();
var str = "星期"+ a[week];
alert(str);
script type="text/javascript" language="javascript"
function calc(){
var date=new Date(),str;
week=date.getDay();
if(week==0){
str="星期日"
}else if(week==1){
str="星期一"
}else if(week==2){
str="星期二"
}else if(week==3){
str="星期三"
}else if(week==4){
str="星期四"
}else if(week==5){
str="星期五"
}else if(week==6){
str="星期六"
}
alert(str);
}
/script
注意我用的是alert對話框輸出的值,new Date(),括號里面可以填指定日期,格式是:YYYY-MM-DD,注意加引號,如果new Date()后面的括號什么都不填,表示獲取當(dāng)前系統(tǒng)的日期和時間,date.getDay()這方法返回的是一個0到6之間的整數(shù),0表示星期天,1到6表示星期一到星期六
本文名稱:javascript星期,js星期一到星期日的動態(tài)
文章出自:http://chinadenli.net/article20/dsippco.html
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