# 系统提供库 + [think扩展库列表](https://packagist.org/packages/topthink/) ## 简要介绍 | 名称 | 说明 | 安装 | 日期 | 文档 | | --- | --- | --- | --- | --- | | 后台任务 | Queue | composer install thinkphp-queue | 17.10.17 | https://github.com/tp5er/think-queue/tree/master/doc | | 图片处理 | Image | composer require topthink/think-image | | | | 时间处理 | Time | composer require topthink/think-helper | | | | 验证码 | Captcha | composer require topthink/think-captcha | | | | 单元测试 | Test| | | | | 数据库迁移 | Migration | composer require topthink/think-migration | | | | Mongo支持 | mongoDb驱动 | composer require topthink/think-mongo=1.* | | https://www.kancloud.cn/manual/thinkphp5/167865 | | | | | | | 说明： 各库使用，详细各章节