graph TD;
    A[开始] --> B{是否完成?};
    B -- 是 --> C[结束];
    B -- 否 --> D[继续];
    D --> B;
    

graph TD;
    A[开始] --> B{是否完成?};
    B -- 是 --> C[结束];
    B -- 否 --> D[继续];
    D --> B;
    

mindmap
    root((mindmap))
      Origins
        Long history
        ::icon(fa fa-book)
        Popularisation
          British popular psychology author Tony Buzan
      Research
        On effectiveness
and features
        On Automatic creation
          Uses
              Creative techniques
              Strategic planning
              Argument mapping
      Tools
        Pen and paper
        Mermaid
    

mindmap
    root((mindmap))
      Origins
        Long history
        ::icon(fa fa-book)
        Popularisation
          British popular psychology author Tony Buzan
      Research
        On effectiveness
and features
        On Automatic creation
          Uses
              Creative techniques
              Strategic planning
              Argument mapping
      Tools
        Pen and paper
        Mermaid