前言
我是歌谣 最好的种树是十年前 其次是现在 今天继续给大家带来的是构造函数和实例化原理的讲解
环境配置
代码语言:javascript复制npm init -y
yarn add vite -D
修改page.json配置端口
代码语言:javascript复制{
"name": "demo1",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"dev": "vite --port 3002"
},
"keywords": [],
"author": "",
"license": "ISC",
"devDependencies": {
"vite": "^4.4.9"
}
}
案例1
代码语言:javascript复制function Car(color,brand){
this.color=color,
this.brand=brand
this.drive=function(){
console.log("i am running")
}
}
var car = new Car('黑色',"geyao")
console.log(car.color)
console.log(car.brand)
car.drive()
运行结果
案例2
代码语言:javascript复制function Car(color,brand){
var me={};
me.color=color;
me.brand=brand
return me
}
var car=new Car("red","geyao")
console.log(car.color)
console.log(car.brand)
运行结果