<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>Document</title><style>.box2{}.box2{width: 200px; height: 200px; background: red; border-radius: 50%;position: relative;}.box3{width: 800px; height: 500px; border:1px solid red;}</style></head><body><button type="" id="start">开始</button><button type="" id="stop">停止</button><div class="box3"><div id="box" class="box2"></div></div></body><script type="text/javascript">var lr=600;var tb=300;var i=0;var j=0;var box=document.getElementById("box");var start=document.getElementById("start");var stop=document.getElementById("stop");start.onclick=function(){start.style.display="none";stop.style.display="inline";var time=setInterval(function(){box.style.left=i+"px";box.style.top=j+"px";if (i>lr) {lr=0;i--;}if(i<=lr){lr=600;i++;}if (j>tb) {tb=0;j--;}if (j<=tb) {tb=300;j++}stop.onclick=function(){clearInterval(time);stop.style.display="none";start.style.display="inline";}},5);}</script></html>以上就是小编为大家带来的javascript 广告移动特效的实现代码全部内容了,希望大家多多支持脚本之家~