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Home  >  Article  >  Web Front-end  >  js date formatting function

js date formatting function

巴扎黑
巴扎黑Original
2017-07-18 18:22:391533browse

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title></title>
<link rel="stylesheet" href="">

<script type="text/javascript">
<!--格式化日期的js方法一-->
Date.prototype.Format = function (fmt) { //author: meizz 
   	var o = {
       	"M+": this.getMonth() + 1, //月份 
       	"d+": this.getDate(), //日 
       	"h+": this.getHours(), //小时 
       	"m+": this.getMinutes(), //分 
       	"s+": this.getSeconds(), //秒 
       	"q+": Math.floor((this.getMonth() + 3) / 3), //季度 
       	"S": this.getMilliseconds() //毫秒 
   	};
   	if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
   	for (var k in o)
   	if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
   	return fmt;
}
//测试一
function formatDate(){
alert(new Date());
var time1 = new Date().Format("yyyy-MM-dd");
alert(time1);
var time2=new Date().Format("yyyy-MM-dd hh:mm:ss:s q")
alert(time2);
}
<!--格式化日期的js方法二-->
Date.prototype.pattern=function(fmt){
var o={
"M+":this.getMonth()+1,//月份
"d+":this.getDate(),//日
"h+":this.getHours()%12==0?12:this.getHours()%12,//
"H+":this.getHours(),
"m+":this.getMinutes(),
"s+":this.getSeconds(),
"q+":Math.floor((this.getMonth()+3)/3),//季度
"S+":this.getMilliseconds()//毫秒
};
var week={
"0" : "日",         
   	"1" : "一",         
   	"2" : "二",         
   	"3" : "三",         
   	"4" : "四",         
"5" : "五",         
   	"6" : "六"   
}
if(/(y+)/.test(fmt)){         
       fmt=fmt.replace(RegExp.$1, (this.getFullYear()+"").substr(4 - RegExp.$1.length));         
   }         
   if(/(E+)/.test(fmt)){         
       fmt=fmt.replace(RegExp.$1, ((RegExp.$1.length>1) ? (RegExp.$1.length>2 ? "星期" : "周") : "")+week[this.getDay()+""]);         
   }         
   for(var k in o){         
       if(new RegExp("("+ k +")").test(fmt)){         
           fmt = fmt.replace(RegExp.$1, (RegExp.$1.length==1) ? (o[k]) : (("00"+ o[k]).substr((""+ o[k]).length)));         
       }         
   }         
   return fmt;         
}
//测试二
function formatDate2(){
var date = new Date();      
window.alert(date.pattern("yyyy-MM-dd hh:mm:ss"));
alert(date.pattern("yyyy-MM-dd HH:mm:ss"));
alert(date.pattern("yyyy-MM-dd EE HH:mm:ss"));
alert(date.pattern("p"));
}
</script>
</head>
<input type="button" name="" value="格式化时间" onclick="formatDate();">
<br>
<br>	
<br>
<input type="button" name="" value="格式化时间" onclick="formatDate2();">

<body>

</body>
</html>


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