add saveas
add saveas

abcsun/qiniu-laravel-storage,qiniu/php-sdk,zgldh/qiniu-laravel-storage,motian/qiniu-laravel-storage,qiniu/php-sdk,rwifeng/php-sdk,netroby/qiniu-php-sdk,rwifeng/php-sdk,django-wong/qiniu-laravel-storage