diff --git a/README.md b/README.md
index 19f3fd5..d67dddd 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,18 @@
 # NCMconverter
 NCMconverter将ncm文件转换为mp3或者flac文件
+
+实现参考了[yoki123/ncmdump][1]，重构了代码，并且添加了多线程支持
+
+## 使用
+
+* `NCMconverter [options] <files/dirs>`
+
+* `--output value, -o value  指定输出目录，默认为原音频文件夹
+   --tag, -t                 是否使用给转换后的文件添加meta信息（有bug，这个参数没有用）
+   --deepth value, -d value  文件目录寻找的最大深度，默认为0，无视目录
+   --thread value, -n value  线程数
+   --help, -h                help
+   --version, -v             version`
+
+---
+[1]:https://github.com/yoki123/ncmdump
\ No newline at end of file
diff --git a/converter/converter.go b/converter/converter.go
index 7939f6a..cd84452 100644
--- a/converter/converter.go
+++ b/converter/converter.go
@@ -7,7 +7,7 @@ import (
 	"math"
 	"sync"
 
-	"github.com/closetool/NCMConverter/ncm"
+	"github.com/closetool/NCMconverter/ncm"
 )
 
 var (
diff --git a/converter/converter_test.go b/converter/converter_test.go
index ac51a3d..84c09b8 100644
--- a/converter/converter_test.go
+++ b/converter/converter_test.go
@@ -5,7 +5,7 @@ import (
 	"os"
 	"testing"
 
-	"github.com/closetool/NCMConverter/ncm"
+	"github.com/closetool/NCMconverter/ncm"
 )
 
 var nf *ncm.NcmFile
diff --git a/go.mod b/go.mod
index 6ece864..29eabfa 100644
--- a/go.mod
+++ b/go.mod
@@ -1,9 +1,10 @@
-module github.com/closetool/NCMConverter
+module github.com/closetool/NCMconverter
 
 go 1.13
 
 require (
 	github.com/bogem/id3v2 v1.2.0
+	github.com/closetool/NCMConverter v0.0.0-20200906080438-4b25103209d7
 	github.com/go-flac/flacpicture v0.2.0
 	github.com/go-flac/flacvorbis v0.1.0
 	github.com/go-flac/go-flac v0.3.1
diff --git a/go.sum b/go.sum
index d487ddd..00feb34 100644
--- a/go.sum
+++ b/go.sum
@@ -17,6 +17,8 @@ github.com/bogem/id3v2 v1.2.0/go.mod h1:t78PK5AQ56Q47kizpYiV6gtjj3jfxlz87oFpty8D
 github.com/btcsuite/winsvc v1.0.0/go.mod h1:jsenWakMcC0zFBFurPLEAyrnc/teJEM1O46fmI40EZs=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/closetool/NCMConverter v0.0.0-20200906080438-4b25103209d7 h1:0JimkEHlfgs+9LzRb0UgCRnuQWoeUakvlvKTlT7Gpu8=
+github.com/closetool/NCMConverter v0.0.0-20200906080438-4b25103209d7/go.mod h1:rIsIRw1Q71CQ71m4ayUnappD5Ju4vwjg9Lf3IUjZbZU=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
diff --git a/main.go b/main.go
index d9070e7..78e6211 100644
--- a/main.go
+++ b/main.go
@@ -6,10 +6,10 @@ import (
 	"os"
 	"strings"
 
-	"github.com/closetool/NCMConverter/converter"
-	"github.com/closetool/NCMConverter/ncm"
-	"github.com/closetool/NCMConverter/path"
-	"github.com/closetool/NCMConverter/tag"
+	"github.com/closetool/NCMconverter/converter"
+	"github.com/closetool/NCMconverter/ncm"
+	"github.com/closetool/NCMconverter/path"
+	"github.com/closetool/NCMconverter/tag"
 	"github.com/urfave/cli/v2"
 	"github.com/xxjwxc/gowp/workpool"
 )
@@ -54,10 +54,10 @@ func main() {
 				Destination: &cmd.deepth,
 			},
 			&cli.IntFlag{
-				Name: "thread",
-				Aliases: []string{"n"},
-				Value: 10,
-				Usage: "max thread count",
+				Name:        "thread",
+				Aliases:     []string{"n"},
+				Value:       10,
+				Usage:       "max thread count",
 				Destination: &cmd.thread,
 			},
 		},
@@ -95,15 +95,14 @@ func action(c *cli.Context) error {
 	pool = workpool.New(cmd.thread)
 
 	//files := make([]strings, 0)
-	res,err := resolvePath(args)
+	res, err := resolvePath(args)
 	if err != nil {
-		log.Printf("resolving file path failed: %v",err)
+		log.Printf("resolving file path failed: %v", err)
 	}
 
-
 	for _, pt := range res {
 		p := pt
-		pool.Do(func()error{
+		pool.Do(func() error {
 			err := convert(p, cmd.output)
 			if err != nil {
 				log.Printf("Convert %v failed: %v", p, err)
@@ -115,7 +114,7 @@ func action(c *cli.Context) error {
 	return nil
 }
 
-func resolvePath(args []string) ([]string ,error){
+func resolvePath(args []string) ([]string, error) {
 	var res []string
 	for _, arg := range args {
 		info, err := os.Stat(arg)
@@ -124,7 +123,7 @@ func resolvePath(args []string) ([]string ,error){
 			continue
 		}
 		if info.IsDir() {
-			res ,err = findNCMInDir(arg, cmd.deepth)
+			res, err = findNCMInDir(arg, cmd.deepth)
 			if err != nil {
 				log.Printf("find ncm file in %s failed: %v", arg, err)
 			}
@@ -132,7 +131,7 @@ func resolvePath(args []string) ([]string ,error){
 			res = append(res, arg)
 		}
 	}
-	return res,nil
+	return res, nil
 }
 
 func convert(filePath, dir string) error {
@@ -179,9 +178,9 @@ func convert(filePath, dir string) error {
 }
 
 func writeToFile(dst string, data []byte) error {
-	info,err :=os.Stat(path.Dir(dst))
+	info, err := os.Stat(path.Dir(dst))
 	if err != nil && info == nil {
-		os.MkdirAll(path.Dir(dst),0644)
+		os.MkdirAll(path.Dir(dst), 0644)
 	}
 	fd, err := os.OpenFile(dst, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
 	if err != nil {
@@ -207,21 +206,21 @@ func Tag(path string, imageData []byte, meta *converter.Meta) error {
 	return err
 }
 
-func findNCMInDir(dir string, deepth int)([]string, error){
+func findNCMInDir(dir string, deepth int) ([]string, error) {
 	if deepth <= 0 {
-		return nil,nil
+		return nil, nil
 	}
 	infos, err := ioutil.ReadDir(dir)
 	if err != nil {
-		return nil,err
+		return nil, err
 	}
 
-	res := make([]string,0)
+	res := make([]string, 0)
 	for _, info := range infos {
 		if info.IsDir() {
-			tmp,_ := findNCMInDir(path.Join(dir, info.Name()), deepth-1)
+			tmp, _ := findNCMInDir(path.Join(dir, info.Name()), deepth-1)
 			if tmp != nil {
-				res = append(res,tmp...)
+				res = append(res, tmp...)
 			}
 		} else {
 			if strings.HasSuffix(info.Name(), ".ncm") {
@@ -229,5 +228,5 @@ func findNCMInDir(dir string, deepth int)([]string, error){
 			}
 		}
 	}
-	return res,nil
+	return res, nil
 }
diff --git a/ncm/ncm.go b/ncm/ncm.go
index 47df2f4..cf9d1cd 100644
--- a/ncm/ncm.go
+++ b/ncm/ncm.go
@@ -6,7 +6,7 @@ import (
 	"os"
 	"strings"
 
-	"github.com/closetool/NCMConverter/path"
+	"github.com/closetool/NCMconverter/path"
 )
 
 const (
diff --git a/tag/tag.go b/tag/tag.go
index a289a57..24390db 100644
--- a/tag/tag.go
+++ b/tag/tag.go
@@ -5,9 +5,9 @@ import (
 	"log"
 	"strings"
 
-	"github.com/closetool/NCMConverter/converter"
-	"github.com/closetool/NCMConverter/tag/flac"
-	"github.com/closetool/NCMConverter/tag/mp3"
+	"github.com/closetool/NCMconverter/converter"
+	"github.com/closetool/NCMconverter/tag/flac"
+	"github.com/closetool/NCMconverter/tag/mp3"
 )
 
 const (