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>回调函数等待 3 秒后执行。</p> <p id="demo1"></p> <p id="demo2"></p> <script> setTimeout(function () { document.getElementById("demo1").innerHTML="ossoft-1!"; }, 3000); document.getElementById("demo2").innerHTML="ossoft-2!"; </script> </body> </html>
运行结果