🐱‍🚀Day02-数组对象定义

type 类型别名

• type 类型别名 ```typescript type Lady = { name: string, age: Number };

type Lady = { name: string, age: Number };

const xiaoJieJies: Lady[] = [ { name: “刘英”, age: 18 }, { name: “谢大脚”, age: 28 }, ];

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### class  类
- class 
```typescript
class Madam {
  name: string;
  age: number;
}
const xiaoJieJies: Madam[] = [
  { name: "刘英", age: 18 },
  { name: "谢大脚", age: 28 },
];

• super添加
• class中extends是继承 ```typescript /*
  • @description:
  • @author: wanghao
  • @Date: 2022-03-07 19:15:37
  • @Modified By:
  • @version: 1.0.0 */

/**

• class 类的基本使用 */ class Lady { title = “你好，帅哥”; say() { return this.title; } }

/**

• class中extends是继承
• super 添加 */ class Dou extends Lady { say(): string { return super.say() + “。你好啊”; } sayLove() { return “我喜欢你”; } }

const info = new Dou(); console.log(info.say()); console.log(info.sayLove());

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## TypeScript 中的 interface 接口 2
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### demo
```typescript
/*
 * @description:
 * @author: wanghao
 * @Date: 2022-03-07 17:47:19
 * @Modified By:
 * @version: 1.0.0
 */
/**
 * interface  接口初步了解
 */
// 定义的类型
interface box {
  name: string;
  age: number;
  bust: number;
  waistline?: number;
  [propname: string]: any; //误删除
  say(): string;
}
/**
 * 继承
 */
interface Teacher extends box {
  teach(): string;
}
// 定义的参数
const girl = {
  name: "wanghao",
  age: 20,
  bust: 92,
  waistline: 44,
  sex: "男",
  say() {
    return "欢迎光临，红浪漫洗浴中心！ ";
  },
  teach() {
    return "我来教你如何做";
  },
};
/**
 * @abstract: class 类
 */
class XiaoJieJie implements box {
  name = "刘英";
  age = 18;
  bust = 90;
  say() {
    return "欢迎光临 ，红浪漫洗浴！！";
  }
}
const screenResume = (girl: box) => {
  girl.age < 24 && girl.bust >= 90 && console.log(girl.name + "进入面试");
  girl.age > 24 || (girl.bust < 90 && console.log(girl.name + "你被淘汰"));
};
const getResume = (girl: Teacher) => {
  console.log(girl.name + "年龄是" + girl.age);
  console.log(girl.name + "胸围是" + girl.bust);
  girl.waistline && console.log(girl.name + "腰围是:" + girl.waistline);
  girl.sex && console.log(girl.name + "性别是:" + girl.sex);
  console.log(girl.say());
  console.log(girl.teach());
};
// screenResume(girl);
getResume(girl);