diff --git a/.gitignore b/.gitignore
index 5761abc..afebcf2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 *.o
+fs/logs/**
diff --git a/dateconv/duration.go b/dateconv/duration.go
new file mode 100644
index 0000000..7bea142
--- /dev/null
+++ b/dateconv/duration.go
@@ -0,0 +1,11 @@
+package dateconv
+
+import "time"
+
+func ParseDuration(s string) (time.Duration, error) {
+	if len(s) == 0 {
+		return time.Duration(0), nil
+	}
+
+	return time.ParseDuration(s)
+}
diff --git a/dateconv/duration_test.go b/dateconv/duration_test.go
new file mode 100644
index 0000000..770bbc1
--- /dev/null
+++ b/dateconv/duration_test.go
@@ -0,0 +1,10 @@
+package dateconv
+
+import (
+	"testing"
+)
+
+func TestParseDuration(t *testing.T) {
+	t.Log(ParseDuration(""))
+	t.Log(ParseDuration("abc"))
+}
diff --git a/fs/fs.go b/fs/fs.go
index 88cb0ab..f0eae3a 100644
--- a/fs/fs.go
+++ b/fs/fs.go
@@ -1,7 +1,9 @@
 package fs
 
 import (
+	"io"
 	"os"
+	"path/filepath"
 )
 
 func IsExist(path string) bool {
@@ -17,3 +19,14 @@ func IsDir(path string) bool {
 
 	return file.IsDir()
 }
+
+// 打开或新建文件，目录不存在时创建目录
+func OpenOrNew(filename string) (io.Writer, error) {
+	dir := filepath.Dir(filename)
+	if !IsExist(dir) {
+		os.MkdirAll(dir, 0744)
+	}
+
+	mode := os.FileMode(0644)
+	return os.OpenFile(filename, os.O_CREATE|os.O_WRONLY|os.O_APPEND, mode)
+}
diff --git a/fs/fs_test.go b/fs/fs_test.go
new file mode 100644
index 0000000..5265227
--- /dev/null
+++ b/fs/fs_test.go
@@ -0,0 +1,7 @@
+package fs
+
+import "testing"
+
+func TestOpenFile(t *testing.T) {
+	OpenOrNew("logs/aaa.log")
+}
diff --git a/json/jsoniter.go b/json/jsoniter.go
index c460b42..1deabf3 100644
--- a/json/jsoniter.go
+++ b/json/jsoniter.go
@@ -8,7 +8,7 @@ import (
 	"github.com/json-iterator/go/extra"
 )
 
-func init() {
+func RegisterFuzzyDecoders() {
 	extra.RegisterFuzzyDecoders()
 }
 
diff --git a/logx/logrus_options.go b/logx/logrus_options.go
index 0c09145..fa06663 100644
--- a/logx/logrus_options.go
+++ b/logx/logrus_options.go
@@ -5,6 +5,7 @@ import (
 	"log"
 	"os"
 
+	"github.com/charlienet/go-mixed/fs"
 	"github.com/sirupsen/logrus"
 	"gopkg.in/natefinch/lumberjack.v2"
 )
@@ -68,9 +69,10 @@ func WithOutput(options LogrusOutputOptions) logrusOption {
 	return func(l *logrus.Logger) {
 		var writer io.Writer
 		switch {
-		case options.Output == File, len(options.FileName) > 0:
+		case options.Output == File && len(options.FileName) > 0:
+			// 设置输出为文件，并且已经设置文件名
 			writer = createFileWriter(options)
-		case options.Output == Both:
+		case options.Output == Both && len(options.FileName) > 0:
 			writer = io.MultiWriter(os.Stdout, createFileWriter(options))
 		default:
 			writer = os.Stdout
@@ -92,7 +94,7 @@ func createFileWriter(options LogrusOutputOptions) io.Writer {
 		}
 	}
 
-	f, err := os.OpenFile(options.FileName, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
+	f, err := fs.OpenOrNew(options.FileName)
 	if err != nil {
 		log.Panic(err)
 	}