diff --git a/function.go b/function.go
index e7d18d8..b488a2d 100644
--- a/function.go
+++ b/function.go
@@ -1,77 +1 @@
 package grlogs
-
-import (
-	"crypto/md5"
-	"encoding/hex"
-	"fmt"
-	"io/ioutil"
-	"math/rand"
-	"os"
-	"path"
-	"reflect"
-	"runtime"
-	"strings"
-	"time"
-)
-
-type Empty struct {}
-
-//传入一个字符串，返回一个加密后的md5
-func Md5(str string) string {
-	data := []byte(str)
-	has := md5.Sum(data)
-	md5str := fmt.Sprintf("%x", has) //将[]byte转成16进制
-	return md5str
-}
-
-func Md5File(filePath string) string {
-	hash := md5.New()
-	data, _ := ioutil.ReadFile(filePath)
-	hash.Write([]byte(data))
-	md5str := hex.EncodeToString(hash.Sum(nil))
-	return md5str
-}
-
-func GetPackageName() string {
-	packpath := reflect.TypeOf(Empty{}).PkgPath()
-	if idx := strings.Index(packpath, "/"); idx > 0 {
-		return packpath[:idx]
-	} else {
-		return packpath
-	}
-}
-
-func GetCwd(filepath ...string) string {
-	_, filename1, _, _ := runtime.Caller(0)
-	filename2, _ := os.Getwd()
-	if !strings.HasSuffix(filename2, GetPackageName()) {
-		paths := append([]string{path.Dir(filename1), "/../../"}, filepath...)
-		return path.Join(paths...)
-	} else {
-		paths := append([]string{filename2, "/"}, filepath...)
-		return path.Join(paths...)
-	}
-}
-
-func SetCwd() error {
-	_, filename1, _, _ := runtime.Caller(0)
-	filename2, _ := os.Getwd()
-	if !strings.HasSuffix(filename2, GetPackageName()) {
-		paths := append([]string{path.Dir(filename1), "/../../"})
-		return os.Chdir(path.Join(paths...))
-	} else {
-		paths := append([]string{filename2, "/"})
-		return os.Chdir(path.Join(paths...))
-	}
-}
-
-func RandString(length int) string {
-	str := "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
-	bytes := []byte(str)
-	result := []byte{}
-	r := rand.New(rand.NewSource(time.Now().UnixNano()))
-	for i := 0; i < length; i++ {
-		result = append(result, bytes[r.Intn(len(bytes))])
-	}
-	return string(result)
-}
diff --git a/log.go b/log.go
index 2b79a57..89e3b8b 100644
--- a/log.go
+++ b/log.go
@@ -75,6 +75,7 @@ func GetLogger(name string) *Logger {
 		}
 
 		wd, _ := os.Getwd()
+		fmt.Println(wd)
 
 		conf1 := FileLogConfig{
 			Filename: path.Join(wd, fmt.Sprintf("runtime/logs/%s.log", name)),
diff --git a/log_test.go b/log_test.go
index 89327e9..67d0243 100644
--- a/log_test.go
+++ b/log_test.go
@@ -5,5 +5,7 @@ import (
 )
 
 func TestGetLogger(t *testing.T) {
-	GetLogger("nds").Debug("akldalskflasfa")
+	GetLogger("nds").Debug("我正在调试")
+	GetLogger("nds").Critical("出错了")
+	GetLogger("wifi").Critical("hello wifi")
 }