Class
最后更新于：2022-04-02 03:27:35
[TOC]
## 示例
## hello world
old:
```
function Student(name) {
this.name = name;
}
Student.prototype.hello = function () {
alert('Hello, ' + this.name + '!');
}
```
new:
```
export class Student {
constructor(name) {
this.name = name;
}
hello() {
alert('Hello, ' + this.name + '!');
}
}
```
调用方式都是一样
```
// 导入
import {Student} from "student.js"
var student = new Student("word");
student.hello()
```
### 传入对象
```
export class person{
constructor({name,age}) {
this.name=name
this.age=age
}
echo(){
return this.name+this.age
}
}
```
调用
```
import {person} from "person.js";
let good1 =new person({name:"cpj",age:123});
```
';