tryjsref_gettime_year 在线代码实例

实例代码( Tip: 登录后体验更佳 )
运行代码

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>W3Cschool教程(w3cschool.cn)</title>
</head>
<body>
<p id="demo">单击按钮计算从1970年1月到现在有多少年？</p>
<button onclick="myFunction()">点我</button>
<script>
function myFunction(){
    var minutes=1000*60;
    var hours=minutes*60;
    var days=hours*24;
    var years=days*365;
    var d=new Date();
    var t=d.getTime();
    var y=Math.round(t/years);
    var x = document.getElementById("demo");
    x.innerHTML=y;
}
</script>
</body>
</html>
 
 
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运行结果
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