diff --git a/README.md b/README.md
index e1ceb1c58..cb96e95c6 100644
--- a/README.md
+++ b/README.md
@@ -237,6 +237,13 @@ func RestoreStdout() (s string)
 func RewriteStdout()
 ```
 
+## Code Check
+
+```bash
+gofmt -w -l ./
+golint ./... 
+```
+
 ## License
 
 [MIT](LICENSE)
diff --git a/cliutil/cliutil_test.go b/cliutil/cliutil_test.go
index bb4596ccd..6bfb35f5a 100644
--- a/cliutil/cliutil_test.go
+++ b/cliutil/cliutil_test.go
@@ -1,3 +1 @@
 package cliutil
-
-
diff --git a/dump/dump.go b/dump/dump.go
index 87145af78..09eccfc0b 100644
--- a/dump/dump.go
+++ b/dump/dump.go
@@ -23,14 +23,14 @@ type dumpConfig struct {
 // Config dump data settings
 var Config = dumpConfig{
 	ShowMethod: true,
-	MoreLenNL: 8,
+	MoreLenNL:  8,
 }
 
 // ResetConfig reset config data
 func ResetConfig() {
 	Config = dumpConfig{
 		ShowMethod: true,
-		MoreLenNL: 8,
+		MoreLenNL:  8,
 	}
 }
 
diff --git a/fmtutil/format_test.go b/fmtutil/format_test.go
index 78c4becac..216483e94 100644
--- a/fmtutil/format_test.go
+++ b/fmtutil/format_test.go
@@ -50,4 +50,4 @@ func TestStringsToInts(t *testing.T) {
 
 	_, err = fmtutil.StringsToInts([]string{"a", "b"})
 	is.Error(err)
-}
\ No newline at end of file
+}
diff --git a/mathutil/convert.go b/mathutil/convert.go
index 9a6563c7b..b195e3c78 100644
--- a/mathutil/convert.go
+++ b/mathutil/convert.go
@@ -7,7 +7,7 @@ import (
 )
 
 var (
-	errConvertFail  = errors.New("convert data type is failure")
+	errConvertFail = errors.New("convert data type is failure")
 )
 
 /*************************************************************
diff --git a/strutil/encode.go b/strutil/encode.go
index d7f54e1d2..ed2cbe250 100644
--- a/strutil/encode.go
+++ b/strutil/encode.go
@@ -11,8 +11,9 @@ import (
 )
 
 var (
-	// escape string.
+	// EscapeJS escape javascript string
 	EscapeJS   = template.JSEscapeString
+	// EscapeHTML escape html string
 	EscapeHTML = template.HTMLEscapeString
 )
 
@@ -59,4 +60,3 @@ func URLDecode(s string) string {
 
 	return s
 }
-
diff --git a/strutil/encode_test.go b/strutil/encode_test.go
index 810fdbecd..678f74a8e 100644
--- a/strutil/encode_test.go
+++ b/strutil/encode_test.go
@@ -7,17 +7,17 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-func TestEscape(t *testing.T)  {
-	tests := struct {give, want string} {
+func TestEscape(t *testing.T) {
+	tests := struct{ give, want string }{
 		"<p>some text</p>",
 		"&lt;p&gt;some text&lt;/p&gt;",
 	}
 
 	assert.Equal(t, tests.want, strutil.EscapeHTML(tests.give))
 
-	tests = struct {give, want string} {
-		 "<script>var a = 23;</script>",
-		 `\x3Cscript\x3Evar a = 23;\x3C/script\x3E`,
+	tests = struct{ give, want string }{
+		"<script>var a = 23;</script>",
+		`\x3Cscript\x3Evar a = 23;\x3C/script\x3E`,
 	}
 	assert.Equal(t, tests.want, strutil.EscapeJS(tests.give))
 }
diff --git a/strutil/format.go b/strutil/format.go
index afd732150..681ed2966 100644
--- a/strutil/format.go
+++ b/strutil/format.go
@@ -117,4 +117,3 @@ func CamelCase(s string, sep ...string) string {
 		return UpperFirst(s)
 	})
 }
-
diff --git a/strutil/format_test.go b/strutil/format_test.go
index 4359c1112..663d7d561 100644
--- a/strutil/format_test.go
+++ b/strutil/format_test.go
@@ -88,4 +88,4 @@ func TestCamelCase(t *testing.T) {
 	// custom sep char
 	is.Equal("rangePrice", strutil.CamelCase("range+price", "+"))
 	is.Equal("rangePrice", strutil.CamelCase("range*price", "*"))
-}
\ No newline at end of file
+}
diff --git a/strutil/strutil.go b/strutil/strutil.go
index dec0b3d3f..a950b84c0 100644
--- a/strutil/strutil.go
+++ b/strutil/strutil.go
@@ -8,6 +8,7 @@ import (
 	"text/template"
 )
 
+// Position for padding string
 const (
 	PosLeft uint8 = iota
 	PosRight
@@ -123,7 +124,7 @@ func PadRight(s, pad string, length int) string {
 // Repeat repeat a string
 func Repeat(s string, times int) string {
 	if times < 2 {
-		 return s
+		return s
 	}
 
 	var ss []string
diff --git a/strutil/strutil_test.go b/strutil/strutil_test.go
index 8bad8524f..9c5756672 100644
--- a/strutil/strutil_test.go
+++ b/strutil/strutil_test.go
@@ -78,11 +78,11 @@ func TestRepeat(t *testing.T) {
 }
 
 func TestPadding(t *testing.T) {
-	tests := []struct{
+	tests := []struct {
 		want, give, pad string
-		len int
-		pos uint8
-	} {
+		len             int
+		pos             uint8
+	}{
 		{"ab000", "ab", "0", 5, strutil.PosRight},
 		{"000ab", "ab", "0", 5, strutil.PosLeft},
 	}