源代码 ：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>开源教程(ossoft.cn)</title> </head> <body> <p>整数最多为 15 位。</p> <button onclick="myFunction()">点我</button> <p id="demo"></p> <script> function myFunction() { var x = 999999999999999; var y = 9999999999999999; document.getElementById("demo").innerHTML = x + "<br>" + y; } </script> </body> </html>
运行结果