編程練習(xí) 某班的成績(jī)出來了，現(xiàn)在老師要把班級(jí)的成績(jī)打印出來。
每次都沒有標(biāo)準(zhǔn)答案的。。拜托官方給個(gè)標(biāo)準(zhǔn)答案。。。。一群答一半沒一半，，看的更揪心
水里的海綿
2016-07-07
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2016-07-16
<!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?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;小紅:97;小天:76;小張: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("--班級(jí)總分為："+sum); </script> </head> <body> </body> </html>2016-07-10
<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;小紅:97;小天:76;小張: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("該班級(jí)總分是："+sum+"改班級(jí)平均分是："+parseInt(sum/myarr.length));
</script>
2016-07-07
<!DOCTYPE html>
<html>
?? ?<head>
?? ??? ?<meta charset="UTF-8">
?? ??? ?<title>某班成績(jī)</title>
?? ?</head>
?? ?<body>
?? ??? ?<script type="text/javascript">
?? ??? ??? ?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 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()]+"--班級(jí)總分為："+sum/mystring.length);
?? ??? ?</script>
?? ?</body>
</html>
)