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<!DOCTYPE html><html lang="zh-cn"><head> ???<meta charset="UTF-8" /> ???<title>Document</title></head><body> ???<script> ???????People.prototype ?={ ???????x:100,y:200,z:function(){alert(300);} ???????????} ; //上一级 ???????????????function People(name,age){ ???????????this.name= name; ???????????this.age = age; ???????????????????} ?//类 ???????var people = new People("张三",28); ?//构造函数 ???????people.z(); ???????//alert(people.);构造函数
js ?类
原文地址：https://www.cnblogs.com/aladam/p/10780112.html