const layout = (state = { siderCollapsed: false }, action) => { switch (action.type) { // 打开窗口 case 'OPEN_WINDOW': return state // 关闭窗口 case 'CLOSE_WINDOW': return state // 重新加载窗口 case 'RELOAD_WINDOW': return state // 侧边收起状态 case 'TOGGLE_COLLAPSED': const _state = { ...state, siderCollapsed: action.siderCollapsed } return _state default: return state } } export default layout