1.变量

let title:string='test111'
let age:number=12
let isLogin:boolean=true

2.常量

const hw:string='huawei'

3.数组

let names:string[] = ['a','b','c','d']

4.函数

function test(name:string,age:number){console.log(name,age)
}
let a=(aa:string)=>{console.log(aa)}

5.接口

interface Person{name:string,age:number,weight:number,sing:(song:string)=>voiddance:()=>void
}
let y:Person={name:'test',age:12,weight:11,sing:(song:string)=>{console.log(song)},dance:()=>{console.log('dance')}
}

6.联合类型

let ab:string|number=12

7.枚举类型

enum ThemeColor{Red='#ff0092',Orange='#ff0091',Green='#ff0093',
}
let color:ThemeColor=ThemeColor.Red