关于拆分疑问
我的var name = scoreStr.split(";"); 拆出来是小明: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 name[0] = 小;name[1] = 明;name[2] = ":";name[3] = 8;name[4] = 7;name[5] = "," 这是为什么 为什么不是 name[0] = 小明：87
4 回答
<!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 date = new Date();
var time = {
year: (function() {
_year = date.getFullYear();
return _year + "年";
})(),
month: (function() {
var _month = date.getMonth() + 1;
if(_month < 10) {
_month = "0" + _month;
}
return _month + "月";
})(),
day: (function() {
var _day = date.getDate();
if(_day < 10){
_day = "0" + _day;
}
return _day + "日";
})(),
week: (function() {
var _week = date.getDay();
switch(_week) {
case 0:
_week = "星期日";
break;
case 1:
_week = "星期一";
break;
case 2:
_week = "星期二";
break;
case 3:
_week = "星期三";
break;
case 4:
_week = "星期四";
break;
case 5:
_week = "星期五";
break;
case 6:
_week = "星期六";
break;
default:
console.log("星期错误");
}
return _week;
})(),
}
//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 scoreString = "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 = scoreString.split(";");
var scoreAll = (function() {
var _score,_numStart,_numEnd;
_score = 0;
for(var i = 0; i < scoreArray.length; i++){
_numStart = scoreArray[i].indexOf(":") + 1;
_score += parseInt(scoreArray[i].slice(_numStart,_numEnd));
}
_score /= scoreArray.length;
return Math.ceil(_score);
})();
//从数组中将成绩撮出来，然后求和取整，并输出。
document.write(time.year + time.month + time.day + " " + time.week + "班级总分为：" + scoreAll);
</script>
</head>
<body>
</body>
</html>
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