website
/
shiyan5.html

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>上机实验5</title>
	</head>
	<body>
		<script type="text/javascript">
			/* 179000522 廖孟豪 */
			//  1.字面量创建对象
			var obj1 = {
				name: "刘备",
				sex: "男",
				run: function() {
					console.log("跑");
				}
			}
			console.log(obj1);

			//  2.object方式创建对象
			var obj2 = new Object();
			obj2.name = "刘备";
			obj2.sex = "男";
			obj2.run = function() {
				console.log("跑");
			}
			console.log(obj2);

			//  3.工厂方式创建对象
			function createObject(o_name, o_sex, o_run) {
				var tempObject = new Object();
				tempObject.name = o_name;
				tempObject.sex = o_sex;
				tempObject.run = o_run;
				return tempObject;
			}
			var obj3 = createObject("刘备", "男", new Function("console.log('跑')"));
			console.log(obj3);

			//  4.使用构造函数创建对象
			function Student(name, sex) {
				this.name = name;
				this.sex = sex;
				this.run = function() {
					console.log(this.name + "跑");
				}
			}
			var obj4 = new Student("刘备", "男");
			console.log(obj4);

			//  5.使用原型模式创建对象
			function Person() {}
			Person.prototype.name = "刘备";
			Person.prototype.sex = "男";
			Person.prototype.run = function() {
				console.log(this.name + "跑");
			}
			var obj5 = new Person();
			console.log(obj5);
			obj5.run();

			//  6.构造函数(创建属性)+原型模式(创建方法)创建对象
			function TrueGod(name, sex) {
				this.name = name;
				this.sex = sex;
			}
			TrueGod.prototype.run = function() {
				console.log(this.name + "跑");
			}
			var obj6 = new TrueGod("刘备", "男");
			console.log(obj6);
			obj6.run();

			//  7.属性对象的特征名称及对应值
			function Gods(name) {
				this.name = name;
			}
			var obj7 = new Gods("刘备");
			console.log(Object.getOwnPropertyDescriptor(obj7, "name"));
			/*
			 * value: "刘备"
			 * writable: true【writable】 该属性是否可写
			 * enumerable: true【enumerable】 是否能在for-in循环中遍历出来或在Object.keys中列举出来
			 * configurable: true【configurable]】如果为false，
			 * 		则任何尝试删除目标属性或修改属性以下特性（writable, configurable, enumerable）的行为将被无效化，
			 * */

			//  8.this指向
			function fun() {
				console.log(this)
			}
			fun();
			/* 函数在全局执行环境中,所以其中的this指向的是全局对象,即在浏览器中指向的就是window对象 */

		</script>
	</body>
</html>