<!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 mydate = new Date();
var myday = mydate.getDay();
var mydayarr=["星期天","星期一","星期二","星期三","星期四","星期五","星期六"];
document.write(mydate+mydayarr[myday]+"<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 scoreArray = new Array(10);
var sum = 0;
for(i=0;i<=scoreStr.length/6;i++){
scoreArray[i]= parseInt(scoreStr.slice(i*6+3,i*6+5))
document.write(scoreArray[i]+" ");
sum += scoreArray[i];
}
//从数组中将成绩撮出来，然后求和取整，并输出。
document.write("<br>"+Math.round(sum/scoreArray.length));
</script>
</head>
<body>
</body>
</html>
<!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 mydate = new Date();
var myday = ["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() + 1) + "月" +
mydate.getDate() + "日" + " " +
myday[mydate.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 sorceStr = "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 sourceArr = sorceStr.split(";");
//document.write(sourceArr);//test
//从数组中将成绩撮出来，然后求和取整，并输出。
var score = new Array();
var sum = 0;
for (var i = 0; i < sourceArr.length; i ++) {
sum += parseInt(sourceArr[i].substr(sourceArr[i].indexOf(":")+1));
//document.write("<br>" + sum);//test
}
document.write("班级总分为:" + sum+"<br />");
document.write("班级平均分为(保留整数):" + Math.round(sum/sourceArr.length))
</script>
</head>
<body>
</body>
</html>
//通过javascript的日期对象来得到当前的日期，并输出。
var mydate = new Date();
var myyear = mydate.getFullYear();
var mymonth = mydate.getMonth();
var myday = 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"];
var num = mydate.getDay();
document.write(myyear+"年"+(mymonth+1)+"月"+myday+"日 "+weekday[num]);
//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 strs= new Array(); //定义一数组
strs=scoreStr.split(";"); //字符分割
for (i=0;i<strs.length ;i++ )
{
document.write(strs[i]+"<br/>"); //分割后的字符输出
}
//从数组中将成绩撮出来，然后求和取整，并输出。
var sum=0;
for (i=0;i<strs.length ;i++ )
{
var x = strs[i].substring(3,5)-0
sum += x;
}
var per = Math.ceil(sum/strs.length);
document.write(per+"<br/>");