<script>

		// 1.直接给对象扩充属性和方法;

		var cat = {};

		cat.name = '小白';

		cat.color = 'blue';

		cat.food = 'fish';

		cat.skill = function () {

			alert('喵喵~~~');

		}

		cat.skill();

		//2.对象字面量

		var cat2 = {

			name: '小白',

			color: 'blue',

			food: 'fish',

			skill: function () {

				alert('喵喵~~~');

			}

		};

		console.log(cat2.name);

		//3.工厂方式

		function cat4(n, c) {

			var cat = {};

			cat.name = n;

			cat.color = c;

			cat.food = 'fish';

			cat.skill = function () {

				alert('喵喵~~~');

			}

			return cat;

		}

		var cat5 = cat4('小白','red');

		console.log(cat5.name);

		console.log(cat5.color);

		//4.构造函数方式

		function Cat6(n,c) {

			this.name = n;

			this.color = c;

			this.food = 'fish';

			this.skill = function () {

				alert('喵喵');

			}

		}

		var cat7 = new Cat6('小黄','yellow');

		console.log(cat7.name);

		console.log(cat7.color);

		//5.原型方式

		function Cat8() {};

		Cat8.prototype.name = '小白';

		Cat8.prototype.color = 'white';

		Cat8.prototype.food = 'fish';

		Cat8.prototype.skill = function () {

			alert('喵喵~~~');

		}

		var cat9 = new Cat8();

		console.log(cat9.food);

		//6.构造函数混合方式

		function Cat(n, c) {

			this.name = n;

			this.color = c;

			this.food = 'fish';

		}

		Cat.prototype.skill = function () {

			alert('喵喵hahah~~~');

		}

		var cat10 = new Cat('红','red');

		console.log(cat10.name);

		cat10.skill();

	</script>