prototype和原型链查找 – 开源达人博客

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    <script>
        //prototype和原型链查找
        //构造函数
        function ren(name, sex, age) {
            this.name = name;
            this.sex = sex;
            this.age = age;

            this.shuohua = function() {
                console.log();
            }
            this.zoulu = function() {
                console.log();
            }
        }

        //函数的 prototype 可以加隐型属性
        ren.prototype.gz = "电工";
        //实例化构造方法。
        var re = new ren("wulei", "nan", 30);
        //函数对象的 __proto__  === 函数的 prototype
        console.log(re.__proto__ === ren.prototype);
        console.log(re.gz);
    </script>
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JS

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