LouisDuan
2019-03-18 14:54
//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));
<!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 weekend=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];
var year=mydate.getFullYear();
var month=mydate.getMonth();
var day=mydate.getDay();
document.write(year+"年"+month+"月"+day+"日"+weekend[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 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 enen = scoreStr.split(";");
var sum = 0;
for(var i=0;i<enen.length;i++){
var num = enen[i].substring(3);
sum+=parseInt(num);
}
document.write(sum+"<br>");
//从数组中将成绩撮出来,然后求和取整,并输出。
document.write(Math.floor(sum/enen.length))
</script>
</head>
<body>
</body>
</html>
1、mydate.getMonth()要改成(mydate.getMonth()+1)
2、mydate.getDay()要改成mydate.getDate()
<!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">
var weekday=['星期天','星期一','星期二','星期三','星期四','星期五','星期六']
//通过javascript的日期对象来得到当前的日期,并输出。
var date=new Date();
document.write(date.getFullYear()+"年"+(date.getMonth()+1)+"月"+date.getDate()+"日"+" "+weekday[date.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 myarr=scoreStr.split(":");
//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=1;i<myarr.length;i++)
{
//document.write(parseInt(myarr[i]));
sum=sum+parseInt(myarr[i]);
}
document.write("--班级总分为:"+Math.round(sum)+'<br/>');
document.write("平均分:"+Math.round(sum)/(myarr.length-1));
</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();
//document.write(mydate);
//document.write(mydate.getDay());
var year=mydate.getFullYear();
var month=mydate.getMonth();
var date=mydate.getDate();
var day=mydate.getDay();
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(year+"年"+month+"月"+date+"日"+" "+myday[day]+"--"+"班级总分为:");
//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 scoreArr = scoreStr.split(";");
scoreStr = scoreArr.join(":");
scoreArr = scoreStr.split(":");
//document.write(scoreArr);
var score=0;
var num=0;
//从数组中将成绩撮出来,然后求和取整,并输出。
for(i=1;i<scoreArr.length;i=i+2){
//document.write(scoreArr[i]);
score=score+parseInt(scoreArr[i]);
num++;
}
document.write(score/num);
</script>
</head>
<body>
</body>
</html>
JavaScript进阶篇
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