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<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>系好安全带,准备启航</title>
<script type="text/javascript">
//通过javascript的日期对象来得到当前的日期,并输出。
var mydate=new Date();
var weekend=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];
var year=mydate.getFullYear();
var month=mydate.getMonth();
var day=mydate.getDay();
document.write(year+"年"+month+"月"+day+"日"+weekend[mydate.getDay()]+"<br>" )
//成绩是一长窜的字符串不好处理,找规律后分割放到数组里更好操作哦
var scoreStr = "小明:87;小花:81;小红:97;小天:76;小张:74;小小:94;小西:90;小伍:76;小迪:64;小曼:76";
var enen = scoreStr.split(";");
var sum = 0;
for(var i=0;i<enen.length;i++){
var num = enen[i].substring(3);
sum+=parseInt(num);
}
document.write(sum+"<br>");
//从数组中将成绩撮出来,然后求和取整,并输出。
document.write(Math.floor(sum/enen.length))
</script>
</head>
<body>
</body>
</html>
多谢
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