用途 包名 安装项目生成器 orderlee/orderlee composer require orderlee/orderlee数据库操作 catfan/medoo composer require catfan/medoo图片处理 intervention/image composer require intervention/image邮件发送 phpmailer/phpmailer composer require phpmailer/phpmailerexcel操作类 phpoffice/phpexcel composer require phpoffice/phpexcelword操作类 phpoffice/phpword composer require phpoffice/phpwordHTTP请求类 guzzlehttp/guzzle composer require guzzlehttp/guzzle长连接类（命令行） workerman/workerman composer require workerman/workerman轻量级框架 orderlee/simple-route composer create-project orderlee/simple-route