### composer 不知名但是速度很快的源
最近做了一个laravel的项目莫名composer update一直卡顿速度慢
使用命令
composer update -vvv
来查看详情发现实际都跳转到原来的git上了并没有进行加速，之前
[qujing@qujingdeMacBook-Pro:] ~/www/cc $ composer config -g repo.packagist composer https://packagist.laravel-china.org
[qujing@qujingdeMacBook-Pro:] ~/www/cc $ composer config -g repo.packagist composer https://packagist.laravel-china.org
完美解决