function animal(a, b) {
    this.type = 'animal'
    this.behavior = function () {
        console.log(this.type + " is running")
    }
}

function cat(a, b) {
    this.name = 'wsscat'
    //这里call的意思就是把animal的方法应用到cat这个对象身上
    //所以cat就继承了animal的方法
    animal.call(this);
}

console.log(new cat())

function animal(a, b) {
    this.type = 'animal'
    this.behavior = function () {
        console.log(this.type + " is running")
    }
}

function wsscat(a, b) {
    this.age = 0
}

function cat(a, b) {
    this.name = 'wsscat'
    //这里call的意思就是把animal的方法应用到cat这个对象身上
    //所以cat就继承了animal的方法
    animal.call(this);
    wsscat.call(this);
}

console.log(new cat())

function animal(type) {
    this.type = type
    this.behavior = function () {
        console.log(this.type + " is running")
    }
}

function cat(name, type) {
    this.name = name
    //这里call的意思就是把animal的方法应用到cat这个对象身上
    //所以cat就继承了animal的方法
    //animal.call(this);//type undefined
    //animal.call(this,type);//type cute
    //animal.call(this,arguments[1]);//type cute
    //animal.call(this,arguments);//type ['wsscat','cute']
    animal.apply(this, arguments) //type: wsscat
}

console.log(new cat('wsscat', 'cute'))

function animal(type) {
    this.type = type
    this.behavior = function () {
        console.log(this.type + " is running")
    }
}
animal.prototype.action = function () {
    console.log("running")
}

function cat(name, type) {
    this.name = name
    animal.call(this, type)
}

cat.prototype = new animal();
console.log(new cat('wsscat', 'cute'));
(new cat('wsscat')).action() //running