分享几个国内的composer镜像源
composer config -g repos.packagist composer https://mirrors.tencent.com/composer/ //腾讯云
composer config repo.packagist composer https://mirrors.aliyun.com/composer/ //阿里云
composer config -g repos.packagist composer https://mirrors.tencent.com/composer/ //腾讯云
composer config repo.packagist composer https://mirrors.aliyun.com/composer/ //阿里云