ts中类型2

let a:object
a={}
a=function(){}
//在属性后面加上一个?表示属性可选
//对象设置的格式：{属性名：属性值，属性名：属性值，属性名：属性值}
let b:{name:string,age:number,address?:string}

let c:{name:string,[propName:string]:any}
//在这里表示可以在对象里面随意添加属性名以及属性值

let d:(a:number,b:number)=>number
d=function(a,b){
    return a+b
}

let e:string[]
e=["laozhichi","liulijuan"]
let f:number[]
f=[1,2,3,4,5,6]
let g:Array<number>

let h:[string,string,number]
h=["laozhichi","liulijaun",20]

enum Gender{
    male,
    female
}
let i:{name:string,gender:Gender}
i={
    name:"laozhichi",
    gender:Gender.male //在这里表示男性 
}
console.log(i.gender===Gender.female);
//在这里判断是否是女性

let j:{name:string}&{age:number}
j={name:"laozhichi",age:18}

type Mytype=string
let z:Mytype

type Mytype=1|2|3|4
let z:Mytype