<!DOCTYPE??HTML>
<html?>
<head>
<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8"?/>
<title>系好安全帶,準備啟航</title>
<script?type="text/javascript">
?
//通過javascript的日期對象來得到當前的日期，并輸出。
????var?date=new?Date
????var?weekday=["星期天","星期一","星期二","星期三","星期四","星期五","星期六"]
????document.write("今天是"+weekday[date.getDay()]+"</br>")?
??//成績是一長竄的字符串不好處理，找規(guī)律后分割放到數(shù)組里更好操作哦
??var?scoreStr?=?"小明:87;小花:81;小紅:97;小天:76;小張:74;小小:94;小西:90;小伍:76;小迪:64;小曼:76";
?var?fenzu=scoreStr.split(";")
????var?score=new?Array;
????var?sum=?0?;
????for(var?i=0;i<=fenzu.length;i++)
????{
?????score[i]=fenzu[i].substr(fenzu[i].indexOf(":")+1)???
??????????sum=sum+parseInt(score[i])
?????????
????};
?????document.write("班級總分為"+sum+"<br>");
?????document.write("班級平均分為(保留整數(shù)):"?+?Math.round(sum???/score.length))??
</script>
</head>
<body>
</body>
</html>
已解決430363個問題，去搜搜看，總會有你想問的
