扩展抽象了题库,方便切换或者增加题库使用

源码请看internal/app/question.tsinternal/app/topic.ts

ps:这个模块其实挺乱的...想优化

# 题库接口

题库的接口

// 题库操作具体实现
export interface QuestionBankFacade {
    ClearQuestion(): void

    AddQuestion(q: Question): void

    Answer(callback: (status: QuestionStatus) => void): void

    Push(callback: (status: QuestionStatus) => void): void

    CheckCourse(): Promise<number>
}
// 题库存储具体实现
export interface QuestionBank {
    Answer(topic: Topic[], resolve: QuestionBankCallback): void;

    Push(answer: Answer[]): Promise<QuestionStatus>;

    SetInfo(info: QuestionInfo): void;

    CheckCourse?(info?: QuestionInfo[]): Promise<number>;
}

# 实现

ToolsQuestionBankFacade 扩展自带题库

# 使用

let topic = new ExamTopic(context, new ToolsQuestionBankFacade("cx", taskinfo));

# 答题接口

如果是利用现在的题库,开发者只需要专注实现下列接口,具体可参考现有平台

// 选项
export interface Options {
    Random(): TopicStatus;
    Fill(s: Answer): Promise<TopicStatus>;
    Correct(): Answer
}
// 题目,继承了选项接口
export interface Question extends Options {
    GetType(): TopicType;
    GetTopic(): string;
    SetStatus(status: TopicStatus): void;
}
// 查询任务中的题目,返回Question数组
export interface QueryQuestions {
    QueryQuestions(): Question[];
}
// 题目任务点
export abstract class Topic {
    public abstract Init(): Promise<any>;
    public abstract Submit(): Promise<any>;
}

# 使用

let topic = new ExamTopic(context, new ToolsQuestionBankFacade("cx", taskinfo));