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">单击按钮将不同的数值降到离它最近的整数。</p> <button onclick="myFunction()">点我</button> <script> function myFunction(){ var a=Math.floor(0.60); var b=Math.floor(0.40); var c=Math.floor(5); var d=Math.floor(5.1); var e=Math.floor(-5.1); var f=Math.floor(-5.9); var x=document.getElementById("demo"); x.innerHTML=a + "<br>" + b + "<br>" + c + "<br>" + d + "<br>" + e + "<br>" + f; } </script> </body> </html>
运行结果