Packagist / Composer中國全量鏡像：https://packagist.phpcomposer.com
阿里雲 Composer：https://mirrors.aliyun.com/composer/
騰訊雲 Composer：https://mirrors.cloud.tencent.com/composer/
華爲雲 Composer：https://repo.huaweicloud.com/repository/php/
#鏡像PATH
#切換鏡像
#全局
composer config -g repo.packagist composer %PATH%
#單一項目，打開項目composer.json所在文件夾
composer config repo.packagist composer %PATH%
#解除鏡像
composer config -g --unset repos.packagist
helper
#多線程下載
composer global require hirak/prestissimo
