<!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"> //通过javascript的日期对象来得到当前的日期,并输出。 var date=new Date(); var weekend=["星期天","星期一","星期二","星期三","星期四","星期五","星期六"] var month=["1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月"] document.write(date.getFullYear()+"年"+month[date.getMonth()]+weekend[date.getDay()]+"<br>"); //成绩是一长窜的字符串不好处理,找规律后分割放到数组里更好操作哦 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 score=scoreStr.split(";"); var arr=new Array(); var sum=0,aver=0; for(var i=0;i<score.length;i++) { var stu=score[i].split(":"); arr[i]=stu[1]; } for(var j=0;j<arr.length;j++) { document.write(parseInt(arr[j])+"<br>"); sum =sum+arr[j]; } aver=sum/10; document.write(aver+"<br>"); //从数组中将成绩撮出来,然后求和取整,并输出。 </script></head><body></body></html>