為什么輸出不了成績(jī)這些
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<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 time=new Date();
var? myarr=[["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","67"],["小曼","76"]];
function a
{var sum=0;
??? for(var i=0,i<myarr.length,i++)
? {
? sum=parseInt(sum)+parseInt(myarr[i][1]);? }
}
document.write(time+"班級(jí)總分為:"+sum/10);
?
?
?
</script>
</head>
<body>
</body>
</html>
2018-07-25
<script?type="text/javascript"> var?time=new?Date(); var?myarr=[["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"]]; function?a() { ??var?sum=0;???? ????for(var?i=0;i<myarr.length;i++)?? ???{?? ????sum=sum+parseInt(myarr[i][1]);???? ???} } document.write(time+"班級(jí)總分為:"+sum/10); </script>函數(shù)a后面沒(méi)括號(hào)；
for循環(huán)里面要用分號(hào)不是逗號(hào)。
小迪的成績(jī)是64不是67。