怎么分?jǐn)?shù)顯示不出來(lái)
<!DOCTYPE ?HTML>
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>系好安全帶,準(zhǔn)備啟航</title>
<script type="text/javascript">
var my=new Date()
? //通過(guò)javascript的日期對(duì)象來(lái)得到當(dāng)前的日期，并輸出。
var weekday=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"]
var motch=["一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月",]
document.write(my.getFullYear()+"年"+motch[my.getMonth()]+my.getDate()+"號(hào)"+weekday[my.getDay()]) ??
? //成績(jī)是一長(zhǎng)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 mn=scoreStr.split("；")
? var sum=0
for(var i=0;i<mn.length;i++)
? ?{sum=sum+parseINt(mn.slice(3,5))}
? //從數(shù)組中將成績(jī)撮出來(lái)，然后求和取整，并輸出。
? var sum1=sum/mn.length
document.write("班級(jí)總分為："+sum+"班級(jí)平均分為："+Math.round(sum1))
</script>
</head>
<body>
</body>
</html>
2016-03-22
謝謝?。?br />
2016-03-20
split(;)里的“;”要在英文狀態(tài)下輸入；
{sum=sum+parseINt(mn.slice(3,5))}里面的mn應(yīng)該是mn[i]；
應(yīng)該是parseInt()而不是parseINt()
代碼：
<!DOCTYPE ?HTML>
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>系好安全帶,準(zhǔn)備啟航</title>
<script type="text/javascript">
var my=new Date()
? //通過(guò)javascript的日期對(duì)象來(lái)得到當(dāng)前的日期，并輸出。
var weekday=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"]
var motch=["一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月",]
document.write(my.getFullYear()+"年"+motch[my.getMonth()]+my.getDate()+"號(hào)"+weekday[my.getDay()]) ??
? //成績(jī)是一長(zhǎng)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 mn=scoreStr.split(";")
? var sum=0
for(var i=0;i<mn.length;i++)
? ?{sum=sum+parseInt(mn[i].slice(3,5))}
? //從數(shù)組中將成績(jī)撮出來(lái)，然后求和取整，并輸出。
? var sum1=sum/mn.length
document.write("班級(jí)總分為："+sum+"班級(jí)平均分為："+Math.round(sum1))
</script>
</head>
<body>
</body>
</html>