<!DOCTYPE html><html><head><meta charset="utf-8"><title>开关按钮设置</title></head><link rel="stylesheet" href="css/Default style sheet.css" /><style>div{width:120px;margin: 0px auto;border: 2px solid black;}ul{display: none;}</style><script>window.οnlοad=function(){var odiv=document.getElementById("v");var oli=odiv.getElementsByTagName("ul")[0];var onf=trueodiv.οnclick=function(){if (onf==true) {oli.style.display='block';onf=false} else{oli.style.display='none';onf=true}}}</script><body><div id="v"><h4>你好啊，小老弟</h2><ul><li>come</li><li>on</li><li>do</li></ul></div></body></html>
