export class AbortablePromise { promise: Promise private _reject: ((res?: any) => void) | null = null constructor(executor: (resolve: (value: T | PromiseLike) => void, reject: (reason?: any) => void) => void) { this.promise = new Promise((resolve, reject) => { executor(resolve, reject) this._reject = reject // 保存reject方法的引用,以便在abort时调用 }) } // 提供abort方法来中止Promise abort(error?: any) { if (this._reject) { this._reject(error) // 调用reject方法来中止Promise } } then( onfulfilled?: ((value: T) => TResult1 | PromiseLike) | undefined | null, onrejected?: ((reason: any) => TResult2 | PromiseLike) | undefined | null ): Promise { return this.promise.then(onfulfilled, onrejected) } catch(onrejected?: ((reason: any) => TResult | PromiseLike) | undefined | null): Promise { return this.promise.catch(onrejected) } }