05 2021 档案

摘要：继承 class Animal { name: string; constructor(theName: string) { this.name = theName; } // 方法的默认参数 move(distanceInMeters: number = 0) { console.log(`${t 阅读全文

摘要：接口概述 function printLabel(labeledObj: { label: string }) { console.log(labeledObj.label); } let myObj = { size: 10, label: "Size 10 Object" }; printLab 阅读全文