获取本周的起止日期
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script>
window.onload = function(){
var a = document.getElementById(‘a‘);
var b = document.getElementById(‘b‘);
//var clen = cells.length;
var currentFirstDate;
var formatDate = function(date){
var year = date.getFullYear()+‘-‘;
var month = (date.getMonth()+1);
var day = date.getDate();
if(month<10)
{
month=‘0‘+month+‘-‘;
}else{
month=month+‘-‘
}
if(day<10)
{
day=‘0‘+day;
}
return year+month+day+‘ ‘;
};
var addDate= function(date,n){
date.setDate(date.getDate()+n);
return date;
};
var setDate = function(date){
var week = date.getDay()-1;
date = addDate(date,week*-1);
currentFirstDate = new Date(date);
a.value=formatDate( addDate(date,0));
b.value=formatDate( addDate(date,6));
};
setDate(new Date());
}
</script>
</head>
<body>
<input type="text" id="a" value="">
<input type="text" id="b" value="">
</body>
</html>
demo1
获取上一周下一周的日期
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
td{
border:1px solid;
}
button{
margin: 5px;
}
</style>
<script>
window.onload = function(){
var cells = document.getElementById(‘monitor‘).getElementsByTagName(‘td‘);
var clen = cells.length;
var currentFirstDate;
var formatDate = function(date){
var year = date.getFullYear()+‘年‘;
var month = (date.getMonth()+1)+‘月‘;
var day = date.getDate()+‘日‘;
var week = ‘(‘+[‘星期天‘,‘星期一‘,‘星期二‘,‘星期三‘,‘星期四‘,‘星期五‘,‘星期六‘][date.getDay()]+‘)‘;
return year+month+day+‘ ‘+week;
};
var addDate= function(date,n){
date.setDate(date.getDate()+n);
return date;
};
var setDate = function(date){
var week = date.getDay()-1;
date = addDate(date,week*-1);
currentFirstDate = new Date(date);
for(var i = 0;i<clen;i++){
cells[i].innerHTML = formatDate(i==0 ? date : addDate(date,1));
}
};
document.getElementById(‘last-week‘).onclick = function(){
setDate(addDate(currentFirstDate,-7));
};
document.getElementById(‘next-week‘).onclick = function(){
setDate(addDate(currentFirstDate,7));
};
setDate(new Date());
}
</script>
</head>
<body>
<button id="last-week">上一周</button><button id="next-week">下一周</button>
<table id="monitor">
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</table>
</body>
</html>
demo2
时间： 2024-10-02 22:47:05