javaScript实例

来源：互联网发布：java bigdecimal 加1 编辑：程序博客网时间：2024/05/22 12:15

学习html和javaScript基本实例<!doctype html><html lang="en"> <head>  <meta charset="UTF-8">    <title>Shopping list</title> </head> <body>   <h1> What to buy</h1>   <p title="a gentle reminder">Don't forget to buy this stuff.</p>   <ul id="purchase">     <li> A tin of beans</li><li class="sale">Cheese</li><li class="sale important">Milk</li>  </ul>  <script>   // alert(typeof document.getElementById("purchases"));    alert("--17-");var items=document.getElementsByTagName("li");for(var i=0;i<items.length;i++){alert(typeof items[i]);}     var paras=document.getElementsByTagName("p");for(var i=0;i<paras.length;i++){   alert(paras[i].getAttribute("title"));}     var shopping=document.getElementById("purchase");alert(shopping.getAttribute("title"));shopping.setAttribute("title","a list of goods");alert(shopping.getAttribute("title"))alert("--jieshu--");  </script> </body></html>

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