Dva 表示法

Posted 2022-08-30 xiaoyutongxue

 

 

抄袭自 [飞行的泥] 他的云雀主页：https://www.yuque.com/flying.ni

 

 

 

app.model(
  namespace: ‘count‘,
  state: 
    record: 0,
    current: 0,
  ,
  reducers: 
    add(state) 
      const newCurrent = state.current + 1;
      return  ...state,
        record: newCurrent > state.record ? newCurrent : state.record,
        current: newCurrent,
      ;
    ,
    minus(state) 
      return  ...state, current: state.current - 1;
    ,
  ,
  effects: 
    *add(action,  call, put ) 
      yield call(delay, 1000);
      yield put( type: ‘minus‘ );
    ,
  ,
  subscriptions: 
    keyboardWatcher( dispatch ) 
      key(‘?+up, ctrl+up‘, () =>  dispatch(type:‘add‘) );
    ,
  ,
);