思路分解输出
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<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 today=new Date();
var d= today.getDay();
switch(d){
case 0:
d="星期日";
break;
case 1:d="星期一";
break;
case 2:d="星期二";
break;
case 3:d="星期三";
break;
case 4:d="星期四";
break;
case 5:d="星期五";
break;
case 6:
d="星期六";
break;
}
var i= today.getDay();
var c= new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六");
document.write(today.getFullYear()+"<br/>");
document.write(today.getMonth()+1,"<br/>");
document.write(today.getDate()+"<br/>");
document.write(d+"<br/>");
document.write(c[i]+"<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 scoreStr1=scoreStr.split(";");
document.write(scoreStr1+"<br/>");
var scoreStr2=scoreStr1.join(":");
document.write(scoreStr2+"<br/>");
var scoreStr3=scoreStr2.split(":");
document.write(scoreStr3);
//从数组中将成绩撮出来，然后求和取整，并输出。
var sum=0;
for(var i=0;i<=scoreStr3.length;i++){
if((i%2)!=0){
sum=sum+parseInt(scoreStr3[i]);
}
}
document.write("<br/>"+sum);
</script>
</head>
<body>
</body>
</html>
