<!DOCTYPE ?HTML><html ><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>系好安全帶,準備啟航</title><script type="text/javascript">? //通過javascript的日期對象來得到當前的日期，并輸出。? var mydate=new Date();? var myyear=mydate.getFullYear();? var mymonth=mydate.getMonth();? var mydate=mydate.getDate();? var weekday=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];? //mydate.getDay();? //var mynum=mydate.getDay();? //document.write("今天是：" + weekday[mydate.getDay()]);????? //成績是一長竄的字符串不好處理，找規律后分割放到數組里更好操作哦? 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 arr= new Array();? var sum=0;? arr=scoreStr.split(";");? for(var i=0;i<arr.length-1;i++)? {? ? ? ?sum+=parseInt(arr[i].substring(3));? }? var arg=Math.round(sum/arr.length);? //從數組中將成績撮出來，然后求和取整，并輸出。? document.write(myyear+"年"+mymonth+"月"+mydate+"日"+" "+"班級總分為:"+arg);</script></head><body></body></html>
加上日期就錯
寶貝er瑩
2015-12-16 17:58:39
