TS 定义数值类型

index.ts

let decLiteral: number = 6 // 10
let hexLiteral: number = 0xf00d // 16
let binaryLiteral: number = 0b1010 // 2
let octalLiteral: number = 0o744 // 8
let notANumber: number = NaN // NaN
let infinityNumber: number = Infinity // Infinity