diff --git a/plugin/minecraftobserver/minecraftobserver.go b/plugin/minecraftobserver/minecraftobserver.go
index c0d6d393..65b80b5d 100644
--- a/plugin/minecraftobserver/minecraftobserver.go
+++ b/plugin/minecraftobserver/minecraftobserver.go
@@ -3,13 +3,14 @@ package minecraftobserver
 
 import (
 	"fmt"
+	"strings"
+	"time"
+
 	ctrl "github.com/FloatTech/zbpctrl"
 	"github.com/FloatTech/zbputils/control"
 	zbpCtxExt "github.com/FloatTech/zbputils/ctxext"
 	zero "github.com/wdvxdr1123/ZeroBot"
 	"github.com/wdvxdr1123/ZeroBot/message"
-	"strings"
-	"time"
 )
 
 const (
@@ -55,7 +56,7 @@ func init() {
 		}
 		msg = append(msg, message.Text(textMsg))
 		if id := ctx.Send(msg); id.ID() == 0 {
-			//logrus.Errorln(logPrefix + "Send failed")
+			// logrus.Errorln(logPrefix + "Send failed")
 			return
 		}
 	})
@@ -81,7 +82,7 @@ func init() {
 			return
 		}
 		if sid := ctx.Send(message.Text(fmt.Sprintf("服务器 %s 订阅添加成功", addr))); sid.ID() == 0 {
-			//logrus.Errorln(logPrefix + "Send failed")
+			// logrus.Errorln(logPrefix + "Send failed")
 			return
 		}
 		// 成功后立即发送一次状态
@@ -92,7 +93,7 @@ func init() {
 		}
 		msg = append(msg, message.Text(textMsg))
 		if id := ctx.Send(msg); id.ID() == 0 {
-			//logrus.Errorln(logPrefix + "Send failed")
+			// logrus.Errorln(logPrefix + "Send failed")
 			return
 		}
 	})
@@ -125,7 +126,7 @@ func init() {
 			stringBuilder.WriteString(fmt.Sprintf("服务器地址: %s\n", v.ServerAddr))
 		}
 		if sid := ctx.Send(message.Text(stringBuilder.String())); sid.ID() == 0 {
-			//logrus.Errorln(logPrefix + "Send failed")
+			// logrus.Errorln(logPrefix + "Send failed")
 			return
 		}
 	})
@@ -187,7 +188,7 @@ func init() {
 			ctx.SendPrivateMessage(su, message.Text(logPrefix, "获取订阅列表失败..."))
 			return
 		}
-		//logrus.Debugln(logPrefix+"global get ", len(serverList), " subscribe(s)")
+		// logrus.Debugln(logPrefix+"global get ", len(serverList), " subscribe(s)")
 		serverMap := make(map[string][]serverSubscribe)
 		for _, v := range serverList {
 			serverMap[v.ServerAddr] = append(serverMap[v.ServerAddr], v)
@@ -197,12 +198,12 @@ func init() {
 			// 查询当前存储的状态
 			storedStatus, sErr := dbInstance.getServerStatus(subAddr)
 			if sErr != nil {
-				//logrus.Errorln(logPrefix+fmt.Sprintf("getServerStatus ServerAddr(%s) error: ", subAddr), sErr)
+				// logrus.Errorln(logPrefix+fmt.Sprintf("getServerStatus ServerAddr(%s) error: ", subAddr), sErr)
 				continue
 			}
 			isChanged, changedNotifyMsg, sErr := singleServerScan(storedStatus)
 			if sErr != nil {
-				//logrus.Errorln(logPrefix+"singleServerScan error: ", sErr)
+				// logrus.Errorln(logPrefix+"singleServerScan error: ", sErr)
 				continue
 			}
 			if !isChanged {
@@ -236,12 +237,12 @@ func singleServerScan(oldSubStatus *serverStatus) (changed bool, notifyMsg messa
 	// 获取服务器状态 & 检查是否需要更新
 	rawServerStatus, err := getMinecraftServerStatus(oldSubStatus.ServerAddr)
 	if err != nil {
-		//logrus.Warnln(logPrefix+"getMinecraftServerStatus error: ", err)
+		// logrus.Warnln(logPrefix+"getMinecraftServerStatus error: ", err)
 		err = nil
 		// 计数器没有超限，增加计数器并跳过
 		if cnt, ts := addPingServerUnreachableCounter(oldSubStatus.ServerAddr, time.Now()); cnt < pingServerUnreachableCounterThreshold &&
-			time.Now().Sub(ts) < pingServerUnreachableCounterTimeThreshold {
-			//logrus.Warnln(logPrefix+"server ", oldSubStatus.ServerAddr, " unreachable, counter: ", cnt, " ts:", ts)
+			time.Since(ts) < pingServerUnreachableCounterTimeThreshold {
+			// logrus.Warnln(logPrefix+"server ", oldSubStatus.ServerAddr, " unreachable, counter: ", cnt, " ts:", ts)
 			return
 		}
 		// 不可达计数器已经超限，则更新服务器状态
@@ -252,17 +253,17 @@ func singleServerScan(oldSubStatus *serverStatus) (changed bool, notifyMsg messa
 		newSubStatus = rawServerStatus.genServerSubscribeSchema(oldSubStatus.ServerAddr, oldSubStatus.ID)
 	}
 	if newSubStatus == nil {
-		//logrus.Errorln(logPrefix + "newSubStatus is nil")
+		// logrus.Errorln(logPrefix + "newSubStatus is nil")
 		return
 	}
 	// 检查是否有订阅信息变化
 	if oldSubStatus.isServerStatusSpecChanged(newSubStatus) {
-		//logrus.Warnf(logPrefix+"server subscribe spec changed: (%+v) -> (%+v)", oldSubStatus, newSubStatus)
+		// logrus.Warnf(logPrefix+"server subscribe spec changed: (%+v) -> (%+v)", oldSubStatus, newSubStatus)
 		changed = true
 		// 更新数据库
 		err = dbInstance.updateServerStatus(newSubStatus)
 		if err != nil {
-			//logrus.Errorln(logPrefix+"updateServerSubscribeStatus error: ", err)
+			// logrus.Errorln(logPrefix+"updateServerSubscribeStatus error: ", err)
 			return
 		}
 		// 纯文本信息
diff --git a/plugin/minecraftobserver/model.go b/plugin/minecraftobserver/model.go
index 763d5278..f4a937cf 100644
--- a/plugin/minecraftobserver/model.go
+++ b/plugin/minecraftobserver/model.go
@@ -4,11 +4,12 @@ import (
 	"crypto/md5"
 	"encoding/hex"
 	"fmt"
+	"strings"
+	"time"
+
 	"github.com/Tnze/go-mc/chat"
 	"github.com/google/uuid"
 	"github.com/wdvxdr1123/ZeroBot/utils/helper"
-	"strings"
-	"time"
 )
 
 // ====================
@@ -147,7 +148,7 @@ type serverPingAndListResp struct {
 // and prepended with "data:image/png;base64,".
 type icon string
 
-//func (i icon) toImage() (icon image.Image, err error) {
+// func (i icon) toImage() (icon image.Image, err error) {
 //	const prefix = "data:image/png;base64,"
 //	if !strings.HasPrefix(string(i), prefix) {
 //		return nil, errors.Errorf("server icon should prepended with %s", prefix)
@@ -237,13 +238,13 @@ func formatSubStatusChangeText(oldStatus, newStatus *serverStatus) string {
 	// 状态由不可达变为可达，反之
 	if oldStatus.PingDelay == pingDelayUnreachable && newStatus.PingDelay != pingDelayUnreachable {
 		msgBuilder.WriteString("\n-----[Ping延迟]-----\n")
-		msgBuilder.WriteString(fmt.Sprintf("[旧]\n超时\n"))
+		msgBuilder.WriteString("[旧]\n超时\n")
 		msgBuilder.WriteString(fmt.Sprintf("[新]\n%v毫秒\n", newStatus.PingDelay))
 	}
 	if oldStatus.PingDelay != pingDelayUnreachable && newStatus.PingDelay == pingDelayUnreachable {
 		msgBuilder.WriteString("\n-----[Ping延迟]-----\n")
 		msgBuilder.WriteString(fmt.Sprintf("[旧]\n%v毫秒\n", oldStatus.PingDelay))
-		msgBuilder.WriteString(fmt.Sprintf("[新]\n超时\n"))
+		msgBuilder.WriteString("[新]\n超时\n")
 	}
 	return msgBuilder.String()
 }
diff --git a/plugin/minecraftobserver/ping.go b/plugin/minecraftobserver/ping.go
index e4691c5e..d691a562 100644
--- a/plugin/minecraftobserver/ping.go
+++ b/plugin/minecraftobserver/ping.go
@@ -2,9 +2,10 @@ package minecraftobserver
 
 import (
 	"encoding/json"
+	"time"
+
 	"github.com/RomiChan/syncx"
 	"github.com/Tnze/go-mc/bot"
-	"time"
 )
 
 var (
@@ -49,12 +50,12 @@ func getMinecraftServerStatus(addr string) (*serverPingAndListResp, error) {
 	var s serverPingAndListResp
 	resp, delay, err := bot.PingAndListTimeout(addr, time.Second*5)
 	if err != nil {
-		//logrus.Errorln(logPrefix+"PingAndList error: ", err)
+		// logrus.Errorln(logPrefix+"PingAndList error: ", err)
 		return nil, err
 	}
 	err = json.Unmarshal(resp, &s)
 	if err != nil {
-		//logrus.Errorln(logPrefix+"Parse json response fail: ", err)
+		// logrus.Errorln(logPrefix+"Parse json response fail: ", err)
 		return nil, err
 	}
 	s.Delay = delay
diff --git a/plugin/minecraftobserver/store.go b/plugin/minecraftobserver/store.go
index ff22fabd..0bc85960 100644
--- a/plugin/minecraftobserver/store.go
+++ b/plugin/minecraftobserver/store.go
@@ -2,13 +2,14 @@ package minecraftobserver
 
 import (
 	"errors"
+	"os"
+	"sync"
+	"time"
+
 	fcext "github.com/FloatTech/floatbox/ctxext"
 	"github.com/jinzhu/gorm"
 	zero "github.com/wdvxdr1123/ZeroBot"
 	"github.com/wdvxdr1123/ZeroBot/message"
-	"os"
-	"sync"
-	"time"
 )
 
 const (
@@ -43,7 +44,7 @@ func initializeDB(dbpath string) error {
 	}
 	gdb, err := gorm.Open("sqlite3", dbpath)
 	if err != nil {
-		//logrus.Errorln(logPrefix+"initializeDB ERROR: ", err)
+		// logrus.Errorln(logPrefix+"initializeDB ERROR: ", err)
 		return err
 	}
 	gdb.AutoMigrate(&serverStatus{}, &serverSubscribe{})
@@ -60,10 +61,9 @@ var (
 	dbInstance *db
 	// 开启并检查数据库链接
 	getDB = fcext.DoOnceOnSuccess(func(ctx *zero.Ctx) bool {
-		var err error
-		err = initializeDB(engine.DataFolder() + dbPath)
+		var err error = initializeDB(engine.DataFolder() + dbPath)
 		if err != nil {
-			//logrus.Errorln(logPrefix+"initializeDB ERROR: ", err)
+			// logrus.Errorln(logPrefix+"initializeDB ERROR: ", err)
 			ctx.SendChain(message.Text("[mc-ob] ERROR: ", err))
 			return false
 		}
@@ -81,7 +81,7 @@ func (d *db) getServerStatus(addr string) (*serverStatus, error) {
 	}
 	var ss serverStatus
 	if err := d.sdb.Model(&ss).Where("server_addr = ?", addr).First(&ss).Error; err != nil {
-		//logrus.Errorln(logPrefix+"getServerStatus ERROR: ", err)
+		// logrus.Errorln(logPrefix+"getServerStatus ERROR: ", err)
 		return nil, err
 	}
 	return &ss, nil
@@ -100,7 +100,7 @@ func (d *db) updateServerStatus(ss *serverStatus) (err error) {
 	ss.LastUpdate = time.Now().Unix()
 	ss2 := ss.deepCopy()
 	if err = d.sdb.Where(&serverStatus{ServerAddr: ss.ServerAddr}).Assign(ss2).FirstOrCreate(ss).Debug().Error; err != nil {
-		//logrus.Errorln(logPrefix, fmt.Sprintf("updateServerStatus %v ERROR: %v", ss, err))
+		// logrus.Errorln(logPrefix, fmt.Sprintf("updateServerStatus %v ERROR: %v", ss, err))
 		return
 	}
 	return
@@ -116,7 +116,7 @@ func (d *db) delServerStatus(addr string) (err error) {
 	d.statusLock.Lock()
 	defer d.statusLock.Unlock()
 	if err = d.sdb.Where("server_addr = ?", addr).Delete(&serverStatus{}).Error; err != nil {
-		//logrus.Errorln(logPrefix+"deleteSubscribe ERROR: ", err)
+		// logrus.Errorln(logPrefix+"deleteSubscribe ERROR: ", err)
 		return
 	}
 	return
@@ -128,7 +128,7 @@ func (d *db) newSubscribe(addr string, targetID, targetType int64) (err error) {
 		return errDBConn
 	}
 	if targetID == 0 || (targetType != 1 && targetType != 2) {
-		//logrus.Errorln(logPrefix+"newSubscribe ERROR: 参数错误 ", targetID, " ", targetType)
+		// logrus.Errorln(logPrefix+"newSubscribe ERROR: 参数错误 ", targetID, " ", targetType)
 		return errParam
 	}
 	d.subscribeLock.Lock()
@@ -137,7 +137,7 @@ func (d *db) newSubscribe(addr string, targetID, targetType int64) (err error) {
 	existedRec := &serverSubscribe{}
 	err = d.sdb.Model(&serverSubscribe{}).Where("server_addr = ? and target_id = ? and target_type = ?", addr, targetID, targetType).First(existedRec).Error
 	if err != nil && !gorm.IsRecordNotFoundError(err) {
-		//logrus.Errorln(logPrefix+"newSubscribe ERROR: ", err)
+		// logrus.Errorln(logPrefix+"newSubscribe ERROR: ", err)
 		return
 	}
 	if existedRec.ID != 0 {
@@ -150,7 +150,7 @@ func (d *db) newSubscribe(addr string, targetID, targetType int64) (err error) {
 		LastUpdate: time.Now().Unix(),
 	}
 	if err = d.sdb.Model(&ss).Create(ss).Error; err != nil {
-		//logrus.Errorln(logPrefix+"newSubscribe ERROR: ", err)
+		// logrus.Errorln(logPrefix+"newSubscribe ERROR: ", err)
 		return
 	}
 	return
@@ -171,12 +171,12 @@ func (d *db) deleteSubscribe(addr string, targetID int64, targetType int64) (err
 		if gorm.IsRecordNotFoundError(err) {
 			return errors.New("未找到订阅")
 		}
-		//logrus.Errorln(logPrefix+"deleteSubscribe ERROR: ", err)
+		// logrus.Errorln(logPrefix+"deleteSubscribe ERROR: ", err)
 		return
 	}
 
 	if err = d.sdb.Where("server_addr = ? and target_id = ? and target_type = ?", addr, targetID, targetType).Delete(&serverSubscribe{}).Error; err != nil {
-		//logrus.Errorln(logPrefix+"deleteSubscribe ERROR: ", err)
+		// logrus.Errorln(logPrefix+"deleteSubscribe ERROR: ", err)
 		return
 	}
 
@@ -184,7 +184,7 @@ func (d *db) deleteSubscribe(addr string, targetID int64, targetType int64) (err
 	var cnt int
 	err = d.sdb.Model(&serverSubscribe{}).Where("server_addr = ?", addr).Count(&cnt).Error
 	if err != nil {
-		//logrus.Errorln(logPrefix+"deleteSubscribe ERROR: ", err)
+		// logrus.Errorln(logPrefix+"deleteSubscribe ERROR: ", err)
 		return
 	}
 	if cnt == 0 {
@@ -200,7 +200,7 @@ func (d *db) getAllSubscribes() (subs []serverSubscribe, err error) {
 	}
 	subs = []serverSubscribe{}
 	if err = d.sdb.Find(&subs).Error; err != nil {
-		//logrus.Errorln(logPrefix+"getAllSubscribes ERROR: ", err)
+		// logrus.Errorln(logPrefix+"getAllSubscribes ERROR: ", err)
 		return
 	}
 	return
@@ -213,7 +213,7 @@ func (d *db) getSubscribesByTarget(targetID, targetType int64) (subs []serverSub
 	}
 	subs = []serverSubscribe{}
 	if err = d.sdb.Model(&serverSubscribe{}).Where("target_id = ? and target_type = ?", targetID, targetType).Find(&subs).Error; err != nil {
-		//logrus.Errorln(logPrefix+"getSubscribesByTarget ERROR: ", err)
+		// logrus.Errorln(logPrefix+"getSubscribesByTarget ERROR: ", err)
 		return
 	}
 	return