想到了正则去匹配，倒是我不会（难过
慕仙9206432
2023-07-30 10:42
<!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 yeaR = new Date().getFullYear()
var montH = new Date().getMonth()
var weeK = new Date().getDay()
var day1 = new Date().getDate()
switch (weeK) {
case 1:
weekDay = '星期一'
break
case 2:
weekDay = '星期二'
break
case 3:
weekDay = '星期三'
break
case 4:
weekDay = '星期四'
break
case 5:
weekDay = '星期五'
break
case 6:
weekDay = '星期六'
break
case 0:
weekDay = '星期日'
break
}
month = parseInt(montH) + parseInt(1)
document.write(yeaR + '年' + month + '月' + day1 + '日' + ' ' + weekDay + '--班级总分为：')
//通过javascript的日期对象来得到当前的日期，并输出。
var total = 0
//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 scrArr = scoreStr.split(';')
var scoLength = scrArr.length
for (i = 0; i < scrArr.length; i++) {
scrArr[i] = scrArr[i].split(':')
total = parseInt(total) + parseInt(scrArr[i][1])
}
var avg = total / scoLength
document.write(Math.round(avg))
//从数组中将成绩撮出来，然后求和取整，并输出。
</script>
</head>
<body>
</body>
</html>1回答
-
- qq_慕斯6003856
- 2025-04-23 11:16:37
<!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 year = mydate.getFullYear(); //年份
var month = mydate.getMonth()+1; //月份
var day = mydate.getDate(); //日期
var weekday = mydate.getDay(); //星期
var weekdayArr=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];
var weekdayStr = weekdayArr[weekday];
console.log(year,month,day,weekdayStr)
document.write(year," ",month," ",day," ",weekdayStr,"<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 scoreArr = scoreStr.split(';')
console.log(scoreArr)
//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<scoreArr.length;i++){
var num = scoreArr[i].slice(3)
console.log(num)
sum+= parseInt(num)
}
console.log(sum)
document.write("总分:",sum,"<br />")
document.write("平均分:", parseInt(sum/scoreArr.length))
</script>
</head>
<body>
</body>
</html>
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