编程练习 某班的成绩出来了，现在老师要把班级的成绩打印出来。
每次都没有标准答案的。。拜托官方给个标准答案。。。。一群答一半没一半，，看的更揪心
3 回答
<!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">
var totime=new Date();
var weekday=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];
document.write(totime.getFullYear()+"年"+totime.getMonth()+"月"+totime.getDate()+"日 "+weekday[totime.getDay()]);
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 myscorearr=scoreStr.split(";");
var sum=0;
for (var i=0;i<myscorearr.length;i++){
sum=sum+parseInt(myscorearr[i].substr(myscorearr[i].indexOf(":")+1))
}
document.write("--班级总分为："+sum);
</script>
</head>
<body>
</body>
</html>
<script type="text/javascript">
var mydate = new Date();
var i = ["星期日","星期一","星期二","星期三","星期四","星期五","星期六"]
document.write("今天是："+mydate.getFullYear() + "年" + mydate.getMonth() + "月" + mydate.getDay() + "日" + i[mydate.getDay()]+"<br />");
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 myarr = scoreStr.split(";");
for(var i=0;i<myarr.length;i++)
{
document.write(myarr[i]+"<br />");
}
var sum =0;
for(var i=0;i<myarr.length;i++)
{
sum = sum + parseInt(myarr[i].slice(3));
}
document.write("该班级总分是："+sum+"改班级平均分是："+parseInt(sum/myarr.length));
</script>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>某班成绩</title>
</head>
<body>
<script type="text/javascript">
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 mystring=scoreStr.split(";");
var sum = 0;
for (i=0;i<mystring.length;i++){
sum += parseInt(mystring[i].split(":")[1]);
}
var mydate = 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(mydate.getFullYear()+"年"+mydate.getMonth()+"月"+mydate.getDate()+"日"+" "+weekday[mydate.getDay()]+"--班级总分为："+sum/mystring.length);
</script>
</body>
</html>
)
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