fmpq.com
源代码：
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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Fmpq教程(fmpq.com)</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>
运行结果