installComposerwgethttps://dl.laravel-china.org/composer.phar-O/usr/local/bin/composerchmoda+x/usr/local/bin/composerComposer镜像加速1.全局配置composerconfig-grepo.packagistcomposerhttps://packagist.laravel-china.org2.本地配置（只有当前项目使用镜像，去掉-g即可）composerconfigrepo.packagistcomposerhttps://packagist.laravel-china.org全局配置信息查看，[repositories.packagist.org.url]表示当前镜像地址composerconfig-gl取消镜像composerconfig-g--unsetrepos.packagist查看当前composer版本composer-vupgrade作曲家版本作曲家自我更新
