我有以下课程：
export class CellLayer extends BaseLayer {
constructor(name: string,type: LayerType,private mapService: MapService) {
super(name,type,mapService);
}
}
和相应的抽象类：
export abstract class BaseLayer implements ILayer {
private _name: string;
private _type: LayerType;
constructor(name: string,private mapService: MapService) {
this._name = name;
this._type = type;
}
}
应将全局MapService对象传递给这两个类.
但是,我现在收到以下错误：
Types have separate declarations of a private property ‘mapService’.
(6,14): Class ‘CellLayer’ incorrectly extends base class ‘BaseLayer’.
解决方法
保护它.
Private表示属性对当前类是私有的,因此子组件不能覆盖它,也不能定义它.
export abstract class BaseLayer implements ILayer {
private _name: string;
private _type: LayerType;
constructor(name: string,protected mapService: MapService) {
this._name = name;
this._type = type;
}
}
export class CellLayer extends BaseLayer {
constructor(name: string,protected mapService: MapService) {
super(name,mapService);
}
}
