模块

export 导出

---

每一个.ts都应该加一个export {},否则定义变量、函数、类的时候会提示Duplicate identifier 的报错

class Person{
  public name:string;
  public age:number;
  public phone:string;
  constructor(name:string,age:number,phone:string){
    this.name = name;
    this.age = age;
    this.phone = phone;
  }
  public eat(who:string):void{
    console.log(this.name+'和'+who+'在一起吃饭');
  }
}
const xiaohong = new Person('小红',23,'18235130928');
xiaohong.eat('小白');

export {}

import 导入

---

import 重命名导入

home.ts

export type ListType = {
  label: string;
}

me.ts

export type ListType = {
  name: string;
}

index.ts

import { ListType as HomeListType } from './home'
import { ListType as MeListType } from './me'

const list1: HomeListType = {
  label: '哈哈'
}
const list2: MeListType = {
  name: '嘻嘻'
}

console.log(list1);
console.log(list2);

import 导入整个模块为一个变量

home.ts

export type ListType = {
  label: string;
}

me.ts

export type ListType = {
  name: string;
}

index.ts

import * as HomeListType from './home'
import * MeListType from './me'

const list1: HomeListType.ListType = {
  label: '哈哈'
}
const list2: MeListType.ListType = {
  name: '嘻嘻'
}

console.log(list1);
console.log(list2);