diff --git a/coolq/api.go b/coolq/api.go
index 783faa0..72d90f1 100644
--- a/coolq/api.go
+++ b/coolq/api.go
@@ -1078,7 +1078,7 @@ func (bot *CQBot) CQGetGroupMessageHistory(groupID int64, seq int64) MSG {
 		log.Warnf("获取群历史消息失败: %v", err)
 		return Failed(100, "MESSAGES_API_ERROR", err.Error())
 	}
-	var ms = make([]MSG, 0, len(msg))
+	ms := make([]MSG, 0, len(msg))
 	for _, m := range msg {
 		id := m.Id
 		bot.checkMedia(m.Elements)
@@ -1104,7 +1104,7 @@ func (bot *CQBot) CQGetOnlineClients(noCache bool) MSG {
 			return Failed(100, "REFRESH_STATUS_ERROR", err.Error())
 		}
 	}
-	var d = make([]MSG, 0, len(bot.Client.OnlineClients))
+	d := make([]MSG, 0, len(bot.Client.OnlineClients))
 	for _, oc := range bot.Client.OnlineClients {
 		d = append(d, MSG{
 			"app_id":      oc.AppId,
@@ -1264,7 +1264,7 @@ func (bot *CQBot) CQGetEssenceMessageList(groupCode int64) MSG {
 	}
 	list := make([]MSG, 0, len(msgList))
 	for _, m := range msgList {
-		var msg = MSG{
+		msg := MSG{
 			"sender_nick":   m.SenderNick,
 			"sender_time":   m.SenderTime,
 			"operator_time": m.AddDigestTime,
diff --git a/coolq/bot.go b/coolq/bot.go
index afafa59..9a830a0 100644
--- a/coolq/bot.go
+++ b/coolq/bot.go
@@ -174,7 +174,7 @@ func (bot *CQBot) UploadLocalImageAsPrivate(userID int64, img *LocalImageElement
 
 // SendGroupMessage 发送群消息
 func (bot *CQBot) SendGroupMessage(groupID int64, m *message.SendingMessage) int32 {
-	var newElem = make([]message.IMessageElement, 0, len(m.Elements))
+	newElem := make([]message.IMessageElement, 0, len(m.Elements))
 	group := bot.Client.FindGroup(groupID)
 	for _, elem := range m.Elements {
 		if i, ok := elem.(*LocalImageElement); ok {
@@ -246,7 +246,7 @@ func (bot *CQBot) SendGroupMessage(groupID int64, m *message.SendingMessage) int
 
 // SendPrivateMessage 发送私聊消息
 func (bot *CQBot) SendPrivateMessage(target int64, groupID int64, m *message.SendingMessage) int32 {
-	var newElem = make([]message.IMessageElement, 0, len(m.Elements))
+	newElem := make([]message.IMessageElement, 0, len(m.Elements))
 	for _, elem := range m.Elements {
 		if i, ok := elem.(*LocalImageElement); ok {
 			fm, err := bot.UploadLocalImageAsPrivate(target, i)
diff --git a/coolq/cqcode.go b/coolq/cqcode.go
index 34596ad..cb81580 100644
--- a/coolq/cqcode.go
+++ b/coolq/cqcode.go
@@ -46,7 +46,7 @@ var SplitURL = false
 var magicCQ = uint32(0)
 
 func init() {
-	var CQHeader = "[CQ:"
+	CQHeader := "[CQ:"
 	magicCQ = *(*uint32)(unsafe.Pointer((*reflect.StringHeader)(unsafe.Pointer(&CQHeader)).Data))
 }
 
@@ -55,8 +55,11 @@ func add(ptr unsafe.Pointer, offset uintptr) unsafe.Pointer {
 	return unsafe.Pointer(uintptr(ptr) + offset)
 }
 
-const maxImageSize = 1024 * 1024 * 30  // 30MB
-const maxVideoSize = 1024 * 1024 * 100 // 100MB
+const (
+	maxImageSize = 1024 * 1024 * 30  // 30MB
+	maxVideoSize = 1024 * 1024 * 100 // 100MB
+)
+
 // PokeElement 拍一拍
 type PokeElement struct {
 	Target int64
@@ -352,7 +355,7 @@ func ToStringMessage(e []message.IMessageElement, id int64, isRaw ...bool) (r st
 // ConvertStringMessage 将消息字符串转为消息元素数组
 func (bot *CQBot) ConvertStringMessage(s string, isGroup bool) (r []message.IMessageElement) {
 	var t, key string
-	var d = map[string]string{}
+	d := map[string]string{}
 	ptr := unsafe.Pointer((*reflect.StringHeader)(unsafe.Pointer(&s)).Data)
 	l := len(s)
 	i, j, CQBegin := 0, 0, 0
@@ -760,14 +763,14 @@ func (bot *CQBot) ToElement(t string, d map[string]string, isGroup bool) (m inte
 		}
 		if d["type"] == "custom" {
 			if d["subtype"] != "" {
-				var subtype = map[string]int{
+				subtype := map[string]int{
 					"qq":    message.QQMusic,
 					"163":   message.CloudMusic,
 					"migu":  message.MiguMusic,
 					"kugou": message.KugouMusic,
 					"kuwo":  message.KuwoMusic,
 				}
-				var musicType = 0
+				musicType := 0
 				if tp, ok := subtype[d["subtype"]]; ok {
 					musicType = tp
 				}
@@ -858,7 +861,7 @@ func (bot *CQBot) ToElement(t string, d map[string]string, isGroup bool) (m inte
 		if err != nil {
 			return nil, err
 		}
-		var header = make([]byte, 4)
+		header := make([]byte, 4)
 		_, err = video.Read(header)
 		if err != nil {
 			return nil, err
@@ -970,7 +973,7 @@ func (bot *CQBot) makeImageOrVideoElem(d map[string]string, video, group bool) (
 		}
 		hash := md5.Sum([]byte(f))
 		cacheFile := path.Join(global.CachePath, hex.EncodeToString(hash[:])+".cache")
-		var maxSize = func() int64 {
+		maxSize := func() int64 {
 			if video {
 				return maxVideoSize
 			}
diff --git a/global/config.go b/global/config.go
index 853c5bd..b15a914 100644
--- a/global/config.go
+++ b/global/config.go
@@ -13,9 +13,11 @@ import (
 
 var json = jsoniter.ConfigCompatibleWithStandardLibrary
 
-var currentPath = getCurrentPath()
-var DefaultConfFile = path.Join(currentPath, "config.hjson")
-var AccountToken []byte
+var (
+	currentPath     = getCurrentPath()
+	DefaultConfFile = path.Join(currentPath, "config.hjson")
+	AccountToken    []byte
+)
 
 // DefaultConfigWithComments 为go-cqhttp的默认配置文件
 var DefaultConfigWithComments = `
@@ -286,7 +288,7 @@ func LoadConfig(p string) *JSONConfig {
 		return nil
 	}
 	var dat map[string]interface{}
-	var c = JSONConfig{}
+	c := JSONConfig{}
 	err := hjson.Unmarshal([]byte(ReadAllText(p)), &dat)
 	if err == nil {
 		b, _ := json.Marshal(dat)
diff --git a/global/log_hook.go b/global/log_hook.go
index 2e0d7e9..7965306 100644
--- a/global/log_hook.go
+++ b/global/log_hook.go
@@ -54,7 +54,6 @@ func (hook *LocalHook) pathWrite(entry *logrus.Entry) error {
 	defer fd.Close()
 
 	log, err := hook.formatter.Format(entry)
-
 	if err != nil {
 		return err
 	}
@@ -142,24 +141,36 @@ func NewLocalHook(args interface{}, formatter logrus.Formatter, levels ...logrus
 func GetLogLevel(level string) []logrus.Level {
 	switch level {
 	case "trace":
-		return []logrus.Level{logrus.TraceLevel, logrus.DebugLevel,
+		return []logrus.Level{
+			logrus.TraceLevel, logrus.DebugLevel,
 			logrus.InfoLevel, logrus.WarnLevel, logrus.ErrorLevel,
-			logrus.FatalLevel, logrus.PanicLevel}
+			logrus.FatalLevel, logrus.PanicLevel,
+		}
 	case "debug":
-		return []logrus.Level{logrus.DebugLevel, logrus.InfoLevel,
+		return []logrus.Level{
+			logrus.DebugLevel, logrus.InfoLevel,
 			logrus.WarnLevel, logrus.ErrorLevel,
-			logrus.FatalLevel, logrus.PanicLevel}
+			logrus.FatalLevel, logrus.PanicLevel,
+		}
 	case "info":
-		return []logrus.Level{logrus.InfoLevel, logrus.WarnLevel,
-			logrus.ErrorLevel, logrus.FatalLevel, logrus.PanicLevel}
+		return []logrus.Level{
+			logrus.InfoLevel, logrus.WarnLevel,
+			logrus.ErrorLevel, logrus.FatalLevel, logrus.PanicLevel,
+		}
 	case "warn":
-		return []logrus.Level{logrus.WarnLevel, logrus.ErrorLevel,
-			logrus.FatalLevel, logrus.PanicLevel}
+		return []logrus.Level{
+			logrus.WarnLevel, logrus.ErrorLevel,
+			logrus.FatalLevel, logrus.PanicLevel,
+		}
 	case "error":
-		return []logrus.Level{logrus.ErrorLevel, logrus.FatalLevel,
-			logrus.PanicLevel}
+		return []logrus.Level{
+			logrus.ErrorLevel, logrus.FatalLevel,
+			logrus.PanicLevel,
+		}
 	default:
-		return []logrus.Level{logrus.InfoLevel, logrus.WarnLevel,
-			logrus.ErrorLevel, logrus.FatalLevel, logrus.PanicLevel}
+		return []logrus.Level{
+			logrus.InfoLevel, logrus.WarnLevel,
+			logrus.ErrorLevel, logrus.FatalLevel, logrus.PanicLevel,
+		}
 	}
 }
diff --git a/global/net.go b/global/net.go
index 56c719e..894099e 100644
--- a/global/net.go
+++ b/global/net.go
@@ -217,7 +217,7 @@ func DownloadFileMultiThreading(url, path string, limit int64, threadCount int,
 		if resp.StatusCode < 200 || resp.StatusCode >= 300 {
 			return errors.New("response status unsuccessful: " + strconv.FormatInt(int64(resp.StatusCode), 10))
 		}
-		var buffer = make([]byte, 1024)
+		buffer := make([]byte, 1024)
 		i, err := resp.Body.Read(buffer)
 		for {
 			if err != nil && err != io.EOF {
diff --git a/global/ratelimit.go b/global/ratelimit.go
index 60a92ea..c1ad4e1 100644
--- a/global/ratelimit.go
+++ b/global/ratelimit.go
@@ -6,8 +6,10 @@ import (
 	"golang.org/x/time/rate"
 )
 
-var limiter *rate.Limiter
-var limitEnable = false
+var (
+	limiter     *rate.Limiter
+	limitEnable = false
+)
 
 // RateLimit 执行API调用速率限制
 func RateLimit(ctx context.Context) {
diff --git a/main.go b/main.go
index 4e0ed2c..f2d990e 100644
--- a/main.go
+++ b/main.go
@@ -38,12 +38,14 @@ import (
 	"golang.org/x/term"
 )
 
-var json = jsoniter.ConfigCompatibleWithStandardLibrary
-var conf *global.JSONConfig
-var isFastStart = false
-var c string
-var d bool
-var h bool
+var (
+	json        = jsoniter.ConfigCompatibleWithStandardLibrary
+	conf        *global.JSONConfig
+	isFastStart = false
+	c           string
+	d           bool
+	h           bool
+)
 
 func init() {
 	var debug bool
diff --git a/server/api.go b/server/api.go
index fdae847..cbdf33d 100644
--- a/server/api.go
+++ b/server/api.go
@@ -42,6 +42,7 @@ func getGroupMemberInfo(bot *coolq.CQBot, p resultGetter) coolq.MSG {
 		p.Get("group_id").Int(), p.Get("user_id").Int(), p.Get("no_cache").Bool(),
 	)
 }
+
 func sendMSG(bot *coolq.CQBot, p resultGetter) coolq.MSG {
 	autoEscape := global.EnsureBool(p.Get("auto_escape"), false)
 	if p.Get("message_type").Str == "private" {
diff --git a/server/daemon.go b/server/daemon.go
index 644abe5..f2746d0 100644
--- a/server/daemon.go
+++ b/server/daemon.go
@@ -30,7 +30,6 @@ func Daemon() {
 
 	proc := exec.Command(os.Args[0], execArgs...)
 	err := proc.Start()
-
 	if err != nil {
 		panic(err)
 	}
diff --git a/server/websocket.go b/server/websocket.go
index f956151..728380f 100644
--- a/server/websocket.go
+++ b/server/websocket.go
@@ -46,6 +46,7 @@ type webSocketConn struct {
 
 // WebSocketServer 初始化一个WebSocketServer实例
 var WebSocketServer = &webSocketServer{}
+
 var upgrader = websocket.Upgrader{
 	CheckOrigin: func(r *http.Request) bool {
 		return true