1\. 下载composer-setup.php到当前目录 ~~~ php -r "copy('https://install.phpcomposer.com/installer', 'composer-setup.php');" ~~~ 2\. 安装 ~~~ php composer-setup.php ~~~ 3\. 将composer设置成全局(linux) ~~~ mv composer.phar /usr/local/bin/composer ~~~ 4\. 替换成中国全量镜像 ~~~ composer config -g repo.packagist composer https://packagist.phpcomposer.com ~~~