JavaScript 格式化時間日期

時間 2019-11-18

原文原文鏈接

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">  
<HTML>  
 <HEAD>  
<TITLE> Format Date </TITLE>  
<META NAME="Generator" CONTENT="EditPlus">  
<META NAME="Author" CONTENT="">  
<META NAME="Keywords" CONTENT="">  
<META NAME="Description" CONTENT="">  
<script type="text/javascript"><!--  
/**  
* 時間對象的格式化;  
*/    
Date.prototype.format = function(format) {    
/*  
* eg:format="yyyy-MM-dd hh:mm:ss";  
*/    
var o = {    
"M+" :this.getMonth() + 1, // month    
"d+" :this.getDate(), // day    
"h+" :this.getHours(), // hour    
"m+" :this.getMinutes(), // minute    
"s+" :this.getSeconds(), // second    
"q+" :Math.floor((this.getMonth() + 3) / 3), // quarter    
"S" :this.getMilliseconds()  // millisecond    
}    
   
if (/(y+)/.test(format)) {    
format = format.replace(RegExp.$1, (this.getFullYear() + "")    
.substr(4 - RegExp.$1.length));    
}  
   
for ( var k in o) {    
if (new RegExp("(" + k + ")").test(format)) {    
format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k]    
: ("00" + o[k]).substr(("" + o[k]).length));    
}    
}    
return format;    
}  
function testDate(){//測試  
var testDate = new Date();  
alert(testDate.format("yyyy-MM-dd hh:mm:ss"));//yyyy 必定得是小寫  
alert(testDate.format("yyyy年MM月dd日hh小時mm分ss秒"));  
alert(testDate.format("yyyy年MM月dd日"));  
alert(testDate.format("MM/dd/yyyy"));  
alert(testDate.format("yyyyMMdd"));  
alert(testDate.format("hh:mm:ss"));  
}  
// --></script>  
</HEAD>  
 <BODY>  
<input type="button" onclick="testDate();" value="testDate"/><!-- 測試按鈕 -->  
 </BODY>  
</HTML>