js简易实现private,public,static和继承

js实现private，public，static和继承 /
//构造函数
function person(){
  this.name = ‘’;//这个相当于public
  var age =12;//private
  //不建议每个函数都用this.getAge，浪费内存，
  //但是对于私有变量age只能用this.getAge来获取值
  this.getAge = function(){
    return age;
  };
}
//添加静态属性或方法
person.TYPE = ‘people’;
person.sayHello = function(){
  console.log(‘hello world’);
}
//类的public方法
person.prototype.setName=function(name){
  this.name = name;
}
person.prototype.getName=function(){
  return this.name;
}

person.prototype.setAge = function(age){
  this.age = age;
}

var p = new person();
p.setName(‘lili’);
p.setAge(45);

//静态类
var staticClass = {}