composer 更换阿里云镜像

全局替换

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

$ composer clear-cache # 此步奏选泽性操作，清除所有 package 缓存。

当前项目替换

$cd项目目录 $ composer config repo.packagist composer https://mirrors.aliyun.com/composer/