Imports github.com/aliyun/aliyun-oss-go-sdk/oss github.com/aws/aws-sdk-go/aws github.com/aws/aws-sdk-go/aws/credentials github.com/aws/aws-sdk-go/aws/session github.com/aws/aws-sdk-go/service/s3 github.com/pkg/errors Imports in module “gitee.com/saxon134/go-utils” gitee.com/saxon134/go-utils/saData Standard library imports bytes errors io io/ioutil math/rand net/http net/url os strings time