请大佬指点
//通过javascript的日期对象来得到当前的日期,并输出。
var mydate = new Date();
var myweeklist = ["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];
var myweek = myweeklist[mydate.getDay()]
document.write(mydate.getFullYear()+"年"+mydate.getMonth()+"月"+mydate.getDay()+"日"+" "+myweek+" ");
//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 newscoreStr = scoreStr.split(";");
var mylist = [];
for(var i = 0; i<newscoreStr.length; i++){
mylist[i] = parseInt(newscoreStr[i].split(":")[1]);
}
var sum = 0;
for(var i = 0; i < mylist.length; i++){
sum = sum+mylist[i];
}
document.write("--班级总分为:"+Math.floor(sum/mylist.length));