diff --git a/importfunc/import_user_id_map.go b/importfunc/import_user_id_map.go
index 6b434f5..b6edbf1 100644
--- a/importfunc/import_user_id_map.go
+++ b/importfunc/import_user_id_map.go
@@ -1,13 +1,9 @@
 package importfunc
 
 import (
-	"bufio"
 	"context"
 	"fmt"
-	"io"
-	"os"
-	"strconv"
-	"strings"
+	"math/rand"
 
 	"data_prep/dbstruct"
 	"data_prep/mongo"
@@ -22,59 +18,17 @@ func ImportUserIdMap() {
 	}
 	ctx := context.Background()
 
-	for i := 1; i < 100; i++ {
-		fmt.Printf("Importing %dth", i)
-		pathurl := fmt.Sprintf("/app/file/user_id_map%v.txt", i)
-		infile, err := os.Open(pathurl)
-		if err != nil {
-			fmt.Printf("Open File Err : %v", err)
-			return
-		}
-		reader := bufio.NewReader(infile)
-		userIdMaps := make([]*dbstruct.UserIdMap, 0)
-		for {
-			str, err := reader.ReadString('\n')
-			if len(str) == 0 {
-				continue
-			}
-			if err == io.EOF {
-				err := mcli.CreateMappedUserIds(ctx, userIdMaps)
-				if err != nil {
-					fmt.Printf("CreateMappedUserIds err :%v", err)
-				}
-				break
-			}
-			strs := strings.Split(str, ":")
-			seq, err := strconv.Atoi(strs[0])
-			if err != nil {
-				fmt.Printf("Atoi err :%v", err)
-			}
-			userId, err := strconv.Atoi(strs[1])
-			if err != nil {
-				fmt.Printf("Atoi err :%v", err)
-			}
-			userIdMaps = append(userIdMaps, &dbstruct.UserIdMap{
-				Seq:    int64(seq),
-				UserId: int64(userId),
-			})
-			if len(userIdMaps) == 1000 {
-				err := mcli.CreateMappedUserIds(ctx, userIdMaps)
-				if err != nil {
-					fmt.Printf("CreateMappedUserIds err :%v", err)
-				}
-				userIdMaps = make([]*dbstruct.UserIdMap, 0)
-			}
-		}
-		infile.Close()
-		fmt.Printf("%dth imported", i)
-	}
-
-	fmt.Printf("Import into test success")
-}
-
-func ImportAsList(mcli *mongo.Mongo, ctx context.Context, list []int64, s int) {
-	fmt.Printf("Importing %dth", s)
 	userIdMaps := make([]*dbstruct.UserIdMap, 0)
+
+	// 打乱
+	list := make([]int64, 0)
+	for i := int64(1000000); i < 100000000; i++ {
+		list = append(list, i)
+	}
+	rand.Shuffle(99000000, func(i, j int) {
+		list[i], list[j] = list[j], list[i]
+	})
+
 	for i := range list {
 		seq := int64(1000000) + int64(i)
 		userId := list[i]
@@ -90,11 +44,13 @@ func ImportAsList(mcli *mongo.Mongo, ctx context.Context, list []int64, s int) {
 			userIdMaps = make([]*dbstruct.UserIdMap, 0)
 		}
 	}
+
 	if len(userIdMaps) > 0 {
 		err := mcli.CreateMappedUserIds(ctx, userIdMaps)
 		if err != nil {
 			fmt.Printf("CreateMappedUserIds err :%v", err)
 		}
 	}
-	fmt.Printf("%dth imported", s)
+
+	fmt.Printf("Import into test success")
 }
diff --git a/mongo/mongo.go b/mongo/mongo.go
index 6993f47..e67391e 100644
--- a/mongo/mongo.go
+++ b/mongo/mongo.go
@@ -34,7 +34,7 @@ func NewMongo() (mongo *Mongo, err error) {
 const (
 	DBUserIdSeq        = "user_id_seq"
 	COLUserIdSeq       = "user_id_seq"
-	COLUserIdMap       = "user_id_map_2"
+	COLUserIdMap       = "user_id_map2"
 	COLUserIdImportSeq = "user_id_import_seq"
 
 	DBAccountIdSeq  = "account_id_seq"