1 個基本類繼承示例,使用 extends 和 super 關鍵字
通用 Car 類具有一些 car 屬性和描述方法
class Car{
name:string;
engineCapacity:string;
constructor(name:string,engineCapacity:string){
this.name = name;
this.engineCapacity = engineCapacity;
}
describeCar(){
console.log(`${this.name} car comes with ${this.engineCapacity} displacement`);
}
}
new Car("maruti ciaz","1500cc").describeCar();
HondaCar 擴充套件了現有的通用汽車類並增加了新的屬性。
class HondaCar extends Car{
seatingCapacity:number;
constructor(name:string,engineCapacity:string,seatingCapacity:number){
super(name,engineCapacity);
this.seatingCapacity=seatingCapacity;
}
describeHondaCar(){
super.describeCar();
console.log(`this cars comes with seating capacity of ${this.seatingCapacity}`);
}
}
new HondaCar("honda jazz","1200cc",4).describeHondaCar();