<!DOCTYPE html>
<head>
<meta charset="UTF-8">
<title>数组</title>
<script type="text/javascript">
// var score1 = 100;
// var score2 = 30;
// var score3 = 20;
//数组可以存储一组数据
// var arr1 = new Array();
// arr1[0] = 100;
// arr1[1] = 30;
// arr1[2] = 60;
// arr1[3] = "sikiedu.com";// arr1[3] = 70;
// arr1[4] = 80;
// arr1[5] = 90;
// console.log(arr1[3]);//70 //注释掉arr1[3] = 70; 打印结果是undefined //字符串arr1[3]="sikiedu.com";居然也能打印出来。
// console.log(arr1.length);//6 //注释掉arr1[3] = 70; 打印结果仍然是6
// for(var i=0;i<arr1.length;i++){
// console.log(arr1[i]);
// }
// var arr2 = new Array(10);
// for(var i = 0;i < arr2.length;i++){
// console.log(arr2[i]);//undefined
// }
// var arr3 = new Array(90,80,50,40);
// var arr3 = new Array("李白","孙尚香","夏侯惇");
// for(var i = 0;i<arr3.length;i++){
// console.log(arr3[i]);
// }
function user(name,age,sex){
this.name = name;
this.age = age;
this.sex = sex;
}
user1 = new user("李白",90,"男");
user2 = new user("孙尚香",30,"女");
user3 = new user("夏侯惇",20,"男");
var arr = new Array(user1,user2,user3);
for(var i = 0;i<arr.length;i++){
// console.log(arr[i].name);
console.log(arr[i].age);
}
</script>
</head>
<body>
</body>
</html>
