【每日一问-dva如何在退出的时候清空所有state】

// 1. Initialize
const initialState = {};
export const app = dva({
 ...
  onReducer:r => (state, action) => {
    const newState = r(state, action);
    if (action.payload && action.payload.actionType === 'session/logout') {
      console.error("r(initialState,action):",r(initialState,action));
      return r(initialState,action);
    }
    return newState;
  },
  initialState
});