布尔，数字，字符串

Boolean

let isBool: boolean = true
isBool = false;
console.log(isBool)

Number

let num:number = 12222;
let num2: number = 0x12334abc;
let num3:number = 0b110101;

String

let str:string = "abc"
let str1:string = `hell ${str}`
console.log(str1);