点击运行
<!DOCTYPE html> <html> <body> <p>此页面上的脚本启动这个时钟：</p> <p id="demo"></p> <script> var myVar = setInterval(myTimer, 1000); function myTimer() { var d = new Date(); document.getElementById("demo").innerHTML = d.toLocaleTimeString(); } </script> </body> </html>
运行结果
