ts实用声明类型

一、基本类型

num = 1，
str = '字符串',
falg = true

2、数组

arr: any = [];

1.单一数组

 arr: number[] = [];
 //或
 arr: Array<number> = [];

2.数组对象

interface Comma {
    
    
  [k: string]: boolean;
}
//或
interface Comma {
    
    
  index: string | number;
  name: string;
 [propName: string]: any;
}

type DataList = Comma[];

commaIndex: DataList = [];

3.对象

interface Comma {
    
    
  [k: string]: any;
}

 subject: Comma = {
    
    };