Composer配置中国全量镜像

查看当前的镜像源：

composer config -g -l repo.packagist

切换国内镜像

阿里云（推荐）

composer config -g repos.packagist composer https://mirrors.aliyun.com/composer/

华为云（更新慢一些）

composer config -g repos.packagist composer https://repo.huaweicloud.com/repository/php/

腾讯云（不推荐）

composer config -g repos.packagist composer https://mirrors.cloud.tencent.com/composer/