erp/core/CoreApp/config/cache.php

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

$config['adapter']     = 'file';
$config['backup']      = 'file';
$config['key_prefix']  = 'api_';     // 统一前缀，便于管理
$config['file_path']   = APPPATH . 'cache/data/';  // 自定义存储目录