# magicTower

**Repository Path**: mcxiang/magicTower

## Basic Information

- **Project Name**: magicTower
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2019-08-08
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# myCourse





2.向对象
1.1
function Person() {
	this.name = 1;
	return {};
}
var person = new Person();
console.log('name:', person.name); //返回undefind  Person里return的是空对象 里面没有name属性

1.2
function Person() {
	this.name = 1;
}
Person.prototype = {
	show: function () {
		console.log('name is:', this.name);
	}
};
var person = new Person();
person.show();                     //返回1 new关键字创建的新对象继承了父对象的那么属性

1.3
function Person() {
	this.name = 1;
}
Person.prototype = {
	name: 2,
	show: function () {
		console.log('name is:', this.name);
	}
};
var person = new Person();
Person.prototype.show = function () {
	console.log('new show');
};
person.show();                      //返回'new show' 父类上的show方法被修改

1.4
function Person() {
	this.name = 1;
}
Person.prototype = {
name: 2,
show: function () {
	console.log('name is:', this.name);
}
};
var person = new Person();
var person2 = new Person();
person.show = function () {
	console.log('new show');
};
person2.show();                     //返回name is:1  this.name大于prototype的优先级？？？
person.show();                      //返回'new show' person的show方法被修改

2、综合题
function Person() {
	this.name = 1;
}
Person.prototype = {
name: 2,
show: function () {
	console.log('name is:', this.name);
}
};
Person.prototype.show();			//返回2 调用了Person.prototype的show方法
(new Person()).show();				//返回1 同this.name大于prototype的优先级？？？