把composer的源切换为 国际的源:composer config -g repo.packagist composer https://packagist.org
国际源切换为中国镜像:
composer config -g repo.packagist composer https://packagist.phpcomposer.com
国际源切换为中国镜像:
composer config -g repo.packagist composer https://packagist.phpcomposer.com