//通过javascript的日期对象来得到当前的日期,并输出。
var day1=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];
var month1=["一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"];
var mydate=new Date();
document.write(mydate.getFullYear()+"年"+month1[mydate.getMonth()]+mydate.getDate()+"日"+day1[mydate.getDay]);
//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 myarray=scoreStr.split(";");
var temp1,num,dex,sum=0;
for(var i=0;i<myarray.length;i++){
temp1= myarray[i];
dex=temp1.indexOf(":");
num=temp1.substr(dex+1,2);
sum+=parseInt(num);
}
//从数组中将成绩撮出来,然后求和取整,并输出。
var av=0;
av=sum/(myarray.length);
document.write("该班的平均成绩"+Math.round(av));
代码运行不了是写错了
代码错误
<!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 idate=new Date();
var xingqi=["星期日","星期一","星期二","星期三","星期四","星期六"]
document.write(idate.getFullYear()+"年"+idate.getMonth()+"月"+idate.getDay()+"日"+xingqi[idate.getDay()]);
//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 a=scoreStr.split(";");
var b=0;
var sum=0;
for(var i=0;i<a.length;i++){
b=parseInt(a[i].substring(3,5));
sum=sum+b;
}
//从数组中将成绩撮出来,然后求和取整,并输出。
document.write("<br>"+"班级总分为:"+sum);
</script>
</head>
<body>
</body>
</html>