diff --git a/README.md b/README.md
index 3680977..a670aed 100644
--- a/README.md
+++ b/README.md
@@ -2,17 +2,17 @@
 [![Go Report Card](https://goreportcard.com/badge/github.com/aberic/gnomon)](https://goreportcard.com/report/github.com/aberic/gnomon)
 [![GolangCI](https://golangci.com/badges/github.com/aberic/gnomon.svg)](https://golangci.com/r/github.com/aberic/gnomon)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/4f11995425294f42aec6a207b8aab367)](https://www.codacy.com/manual/aberic/gnomon?utm_source=github.com&utm_medium=referral&utm_content=aberic/gnomon&utm_campaign=Badge_Grade)
-[![Travis (.org)](https://img.shields.io/travis/aberic/gnomon.svg?label=travis-ci%20build)](https://www.travis-ci.org/aberic/gnomon)
+[![Travis (.org)](https://img.shields.io/travis/aberic/gnomon.svg?label=build)](https://www.travis-ci.org/aberic/gnomon)
 [![Coveralls github](https://img.shields.io/coveralls/github/aberic/gnomon.svg)](https://coveralls.io/github/aberic/gnomon?branch=master)
 
 # Gnomon
-通用go工具库
+通用编写go应用的公共库。
 
-### 开发环境
+## 开发环境
 * Go 1.12+
 * Darwin/amd64
 
-### 测试环境
+## 测试环境
 * Go 1.11+
 * Linux/x64
 
diff --git a/hash.go b/hash.go
index 5feab70..5a0456a 100644
--- a/hash.go
+++ b/hash.go
@@ -30,7 +30,7 @@ type HashCommon struct{}
 // MD5 MD5
 func (h *HashCommon) MD5(text string) string {
 	hash := md5.New()
-	hash.Write([]byte(text))
+	_, _ = hash.Write([]byte(text))
 	return hex.EncodeToString(hash.Sum(nil))
 }
 
@@ -43,34 +43,34 @@ func (h *HashCommon) MD516(text string) string {
 // Sha1 Sha1
 func (h *HashCommon) Sha1(text string) string {
 	hash := sha1.New()
-	hash.Write([]byte(text))
+	_, _ = hash.Write([]byte(text))
 	return hex.EncodeToString(hash.Sum(nil))
 }
 
 // Sha224 Sha224
 func (h *HashCommon) Sha224(text string) string {
 	hash := crypto.SHA224.New()
-	hash.Write([]byte(text))
+	_, _ = hash.Write([]byte(text))
 	return hex.EncodeToString(hash.Sum(nil))
 }
 
 // Sha256 Sha256
 func (h *HashCommon) Sha256(text string) string {
 	hash := sha256.New()
-	hash.Write([]byte(text))
+	_, _ = hash.Write([]byte(text))
 	return hex.EncodeToString(hash.Sum(nil))
 }
 
 // Sha384 Sha384
 func (h *HashCommon) Sha384(text string) string {
 	hash := sha512.New384()
-	hash.Write([]byte(text))
+	_, _ = hash.Write([]byte(text))
 	return hex.EncodeToString(hash.Sum(nil))
 }
 
 // Sha512 Sha512
 func (h *HashCommon) Sha512(text string) string {
 	hash := sha512.New()
-	hash.Write([]byte(text))
+	_, _ = hash.Write([]byte(text))
 	return hex.EncodeToString(hash.Sum(nil))
 }
diff --git a/scale.go b/scale.go
index 51d8c2b..d1d4ef2 100644
--- a/scale.go
+++ b/scale.go
@@ -188,8 +188,7 @@ func (s *ScaleCommon) IntToHexString(i int) string {
 // HexStringToUint64 int字符串转int
 func (s *ScaleCommon) HexStringToUint64(hex string) uint64 {
 	hexLen := len(hex)
-	var uint64Hex uint64
-	uint64Hex = 0
+	var uint64Hex uint64 = 0
 	for i := 0; i < hexLen; i++ {
 		uint64Hex += uint64(intHexMap[hex[i:i+1]]) * uint64(math.Pow(16, float64(hexLen-i-1)))
 	}
@@ -199,8 +198,7 @@ func (s *ScaleCommon) HexStringToUint64(hex string) uint64 {
 // HexStringToInt64 int字符串转int
 func (s *ScaleCommon) HexStringToInt64(hex string) int64 {
 	hexLen := len(hex)
-	var int64Hex int64
-	int64Hex = 0
+	var int64Hex int64 = 0
 	for i := 0; i < hexLen; i++ {
 		int64Hex += int64(intHexMap[hex[i:i+1]]) * int64(math.Pow(16, float64(hexLen-i-1)))
 	}
@@ -300,8 +298,7 @@ func (s *ScaleCommon) IntToDuoString(i int) string {
 // DuoStringToUint64 int字符串转int
 func (s *ScaleCommon) DuoStringToUint64(duo string) uint64 {
 	duoLen := len(duo)
-	var uint64Duo uint64
-	uint64Duo = 0
+	var uint64Duo uint64 = 0
 	for i := 0; i < duoLen; i++ {
 		uint64Duo += uint64(intDuoMap[duo[i:i+1]]) * uint64(math.Pow(32, float64(duoLen-i-1)))
 	}
@@ -311,8 +308,7 @@ func (s *ScaleCommon) DuoStringToUint64(duo string) uint64 {
 // DuoStringToInt64 int字符串转int
 func (s *ScaleCommon) DuoStringToInt64(duo string) int64 {
 	duoLen := len(duo)
-	var int64Duo int64
-	int64Duo = 0
+	var int64Duo int64 = 0
 	for i := 0; i < duoLen; i++ {
 		int64Duo += int64(intDuoMap[duo[i:i+1]]) * int64(math.Pow(32, float64(duoLen-i-1)))
 	}
@@ -412,8 +408,7 @@ func (s *ScaleCommon) IntToDDuoString(i int) string {
 // DDuoStringToUint64 int字符串转int
 func (s *ScaleCommon) DDuoStringToUint64(dDuo string) uint64 {
 	dDuoLen := len(dDuo)
-	var uint64DDuo uint64
-	uint64DDuo = 0
+	var uint64DDuo uint64 = 0
 	for i := 0; i < dDuoLen; i++ {
 		uint64DDuo += uint64(intDDuoMap[dDuo[i:i+1]]) * uint64(math.Pow(64, float64(dDuoLen-i-1)))
 	}
@@ -423,8 +418,7 @@ func (s *ScaleCommon) DDuoStringToUint64(dDuo string) uint64 {
 // DDuoStringToInt64 int字符串转int
 func (s *ScaleCommon) DDuoStringToInt64(dDuo string) int64 {
 	dDuoLen := len(dDuo)
-	var int64DDuo int64
-	int64DDuo = 0
+	var int64DDuo int64 = 0
 	for i := 0; i < dDuoLen; i++ {
 		int64DDuo += int64(intDDuoMap[dDuo[i:i+1]]) * int64(math.Pow(64, float64(dDuoLen-i-1)))
 	}