替换 composer.lock 文件中的 https://files.phpcomposer.com/files/ 为 https://dl.laravel-china.org
命令行 composer config -g repo.packagist composer https://packagist.laravel-china.org
替换 composer.lock 文件中的 https://files.phpcomposer.com/files/ 为 https://dl.laravel-china.org
命令行 composer config -g repo.packagist composer https://packagist.laravel-china.org