标签：字符串 split log nbsp har string for 取字符串 tle
<!DOCTYPE HTML>
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>字符串综合应用</title>
<script type="text/javascript">
var scoreStr = "小明:87;小花:801;小红:907;小天:76;小张:74;小小:94;小西:90;小伍:76;小迪:64;小曼:76";
//split()分割字符串
var a = scoreStr.split(";");
document.write(a);
var s = new Array();
var sum = 0;
for(var i = 0; i < a.length; i++){
//substring()提取字符串中介于两个指定下标之间的字符;
//indexOf()返回某个指定的字符串值在字符串中首次出现的位置;
s[i] = parseInt(a[i].substring(a[i].indexOf(":") + 1));
sum += s[i];
}
document.write("</br>"+s);
document.write("</br>"+"平均数为:" + sum / a.length + "分");
</script>
</head>
<body>
</body>
</html>
标签：字符串 split log nbsp har string for 取字符串 tle
原文地址：http://www.cnblogs.com/calamus/p/7307897.html
