diff --git a/_s3get/main.go b/_s3get/main.go
deleted file mode 100644
index de72563..0000000
--- a/_s3get/main.go
+++ /dev/null
@@ -1,45 +0,0 @@
-package main
-
-import (
-	"context"
-	"crypto/sha256"
-	"encoding/hex"
-	"fmt"
-	"io"
-	"os"
-
-	"github.com/aws/aws-sdk-go-v2/aws"
-	"github.com/aws/aws-sdk-go-v2/credentials"
-	"github.com/aws/aws-sdk-go-v2/service/s3"
-)
-
-// 列出并读回目标桶里的对象，打印 键/字节/sha256：资源字节是否真在目标存储里，只能这样核。
-func main() {
-	endpoint, bucket := os.Getenv("S3_ENDPOINT"), os.Getenv("S3_BUCKET")
-	client := s3.New(s3.Options{
-		Region:       "us-east-1",
-		BaseEndpoint: aws.String(endpoint),
-		Credentials:  credentials.NewStaticCredentialsProvider(os.Getenv("S3_KEY"), os.Getenv("S3_SECRET"), ""),
-		UsePathStyle: true,
-	})
-	ctx := context.Background()
-	pages := s3.NewListObjectsV2Paginator(client, &s3.ListObjectsV2Input{Bucket: aws.String(bucket)})
-	for pages.HasMorePages() {
-		page, err := pages.NextPage(ctx)
-		if err != nil {
-			fmt.Println("list error:", err)
-			os.Exit(1)
-		}
-		for _, item := range page.Contents {
-			out, err := client.GetObject(ctx, &s3.GetObjectInput{Bucket: aws.String(bucket), Key: item.Key})
-			if err != nil {
-				fmt.Println("get error:", item.Key, err)
-				os.Exit(1)
-			}
-			hash := sha256.New()
-			size, _ := io.Copy(hash, out.Body)
-			out.Body.Close()
-			fmt.Printf("%s\t%d\t%s\n", *item.Key, size, hex.EncodeToString(hash.Sum(nil)))
-		}
-	}
-}
\ No newline at end of file