<!DOCTYPE html> <html> <body> <h2>JavaScript getMilliseconds()</h2> <p>getMilliseconds() 方法以数字(0-999)的形式返回日期的毫秒数:</p> <p id="demo"></p> <script> var d = new Date(); document.getElementById("demo").innerHTML = d.getMilliseconds(); </script> </body> </html>