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react学习笔记之redux

redux原理图

1.createStore(创建store)

const store =createStore(
    reducer
);

2.Store.dispatch(把action传递给store)

  handleBtnClick() {
        const action =getAddItemAction();
        store.dispatch(action);
    }

3.Store.getState(获取store中的所有数据内容)

handleStoreChange() {
        this.setState(store.getState());
    }

4.Store.subscribe(监听store数据的改变)

 store.subscribe(this.handleStoreChange);

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