<meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="this is my page"> <meta http-equiv="content-type" content="text/html; charset=UTF-8">
<!--<link rel="stylesheet" type="text/css" href="./styles.css">--> <script language = "javascript" type = "text/javascript">
function jisuan(obj){
var total = 0; var fruits = document.getElementsByName("fruit"); for(var i=0;i<fruits.length;i++){ if(fruits[i].checked){ total += parseFloat(fruits[i].value); } } myspan.innerText = total + "元"; } </script> </head>
<body> <input type = "checkbox" name = "fruit" value = "10" onclick = "jisuan(this)">苹果 10元<br/> <input type = "checkbox" name = "fruit" value = "20" onclick = "jisuan(this)">香蕉 20元<br/> <input type = "checkbox" name = "fruit" value = "30" onclick = "jisuan(this)">西瓜 30元<br/> <input type = "checkbox" name = "fruit" value = "40" onclick = "jisuan(this)">栗子 40元<br/> <input type = "checkbox" name = "fruit" value = "50" onclick = "jisuan(this)">哈密瓜 50元<br/><br/> 总价格是：<span id = "myspan">0元</span> </body> </html>
