构造函数的命名需要用大写字母开头
且只能通过new操作来执行
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</head><body><script>// 创建一个猪对象 构造函数function Pig(uname, age) {this.uname = unamethis.age = age}// console.log(new Pig('佩奇', 6))// console.log(new Pig('乔治', 3))const p = new Pig('佩奇', 6)console.log(p)</script>
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</head><body><script>function Goods(name, price, count) {this.name = namethis.price = pricethis.count = count}const mi = new Goods('小米', 2999, 20)const HW = new Goods('华为', 5999, 10)console.log(mi)console.log(HW)</script>
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