# 配置只在当前项目生效 1. composer config repo.packagist composer https://mirrors.aliyun.com/composer/ 3. \# 取消当前项目配置 4. composer config --unset repos.packagist # 配置全局生效 1. composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/ 3. \# 取消全局配置 4. composer config -g --unset repos.packagist