这种方式赋值必须为对象

标红的"{}"必须加，使之成为对象

export function productListAction(isRefreshing, loading, isLoadMore, filterData={}, spName, sort, pageNo=1) {
    let queryData = Object.assign({}, filterData, {spName}, {sort}, {pageNo});
    console.warn('product===>',queryData);
    return  (isRefreshing || loading) ? 
        {types: [FETCH_PRODUCT_LIST.code, SUCCESS_PRODUCT_LIST, FAILURE_PRODUCT_LIST],
            callAPI: () => request(FETCH_PRODUCT_LIST.url, REQUEST_METHOD_POST, stringify(queryData)),
            payload: {isRefreshing, loading, isLoadMore, queryData, pageNo}
        } : {type: CLEAR_PRODUCT_LIST, isRefreshing, queryData, loading};
}