分享一下自己写的
<!DOCTYPE HTML>
<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 date=new Date();
var year=date.getFullYear();
var month=date.getMonth()+1;
var day=date.getDate();
weekday=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];
var week=weekday[date.getDay()];
document.write(year+"年"+month+"月"+day+"日"+week+"<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 scoreArr=scoreStr.split(";");
//从数组中将成绩撮出来,然后求和取整,并输出。
var sum=0;
var avg=0;
for(i=0;i<scoreArr.length;i++){
sum+=parseInt(scoreArr[i].slice(3,5));
}
document.write("班级总分:"+sum+"<br/>");
avg=sum/scoreArr.length;
document.write("班级平均分:"+avg);
</script>
</head>
<body>
</body>
</html>