diff --git a/plugin/blackjack/blackjack.go b/plugin/blackjack/blackjack.go
index 4f32fd7..a4f08ff 100644
--- a/plugin/blackjack/blackjack.go
+++ b/plugin/blackjack/blackjack.go
@@ -14,7 +14,7 @@ import (
 )
 
 const (
-	EntryMsgTemplate          = "庄家手牌: %s\n玩家手牌: %s\n庄家点数: %d+?, 玩家点数: %d\n是否继续要牌? (hit/stand)"
+	EntryMsgTemplate          = "庄家手牌: %s\n玩家手牌: %s\n庄家点数: %d+?, 玩家点数: %d\n是否继续要牌? (hit/stand)\n加倍下注且仅要一张牌(double)"
 	PlayerTakeCardMsgTemplate = "玩家手牌: %s\n玩家点数: %d\n庄家点数: %d+?\n是否继续要牌? (hit/stand)"
 	DealerHitMsgTemplate      = "庄家点数小于17, 继续要牌\n抽出了一张牌: %s, 总点数: %d"
 	GameOverMsg               = "%s\n游戏结束\n庄家手牌: %s\n玩家手牌: %s\n庄家点数: %d, 玩家点数: %d\n%s"
@@ -34,38 +34,6 @@ func BlackJackEntry(ctx *zero.Ctx) {
 		return
 	}
 
-	userBalance, err := redisrepo.GetUserBalance(ctx.Event.UserID)
-	if err != nil {
-		if err == rueidis.Nil {
-			userBalance = common.Config.Game.Balance
-			redisrepo.Register(ctx.Event.UserID)
-		} else {
-			ctx.Send("获取用户余额失败")
-			return
-		}
-	}
-	if userBalance <= 0 {
-		ctx.Send("你的余额不足, 请等待次日发放")
-		return
-	}
-	ctx.Send("请发送下注金额 (例: bet 1000)")
-	return
-}
-
-// Bet 下注
-func Bet(ctx *zero.Ctx) {
-	if ctx.Event.GroupID == 0 {
-		ctx.Send("请在群聊中使用")
-		return
-	}
-
-	key := fmt.Sprintf("%d_%d", ctx.Event.GroupID, ctx.Event.UserID)
-	_, ok := RoundMap.Load(key)
-	if ok {
-		ctx.Send("你已经在游戏中了, 请继续游戏(hit/stand)")
-		return
-	}
-
 	msg := strings.Split(ctx.Event.Message.String(), " ")
 	if len(msg) != 2 {
 		ctx.Send("下注金额格式错误, 请重新下注")
@@ -131,6 +99,42 @@ func StartGame(ctx *zero.Ctx, key string, bet int64) {
 	ctx.Send(fmt.Sprintf(EntryMsgTemplate, dealerHand, round.PlayerHand, CalculateCardPoint(dealerHandT), playerPoint))
 }
 
+// Double 加倍下注
+func Double(ctx *zero.Ctx) {
+	key := fmt.Sprintf("%d_%d", ctx.Event.GroupID, ctx.Event.UserID)
+	roundUnload, ok := RoundMap.Load(key)
+	if !ok {
+		ctx.Send("你不在游戏中, 请先开始游戏")
+		return
+	}
+	round := roundUnload.(*Round)
+
+	if len(round.PlayerHand) > 2 {
+		ctx.Send("只能在第一次要牌时加倍下注")
+		return
+	}
+
+	round.Bet = decimal.NewFromInt(round.Bet).Mul(decimal.NewFromInt(2)).IntPart()
+	round.PlayerHand = append(round.PlayerHand, round.Deck.Pop())
+	playerPoint := CalculateCardPoint(round.PlayerHand)
+
+	if playerPoint > 21 {
+		redisrepo.SubUserBalance(ctx.Event.UserID, round.Bet)
+		ctx.Send(fmt.Sprintf("玩家抽出了一张 %s\n玩家爆点, 庄家胜\n玩家手牌: %s\n玩家点数: %d\n庄家手牌: %s\n庄家点数: %d\n游戏结束, 庄家胜", round.PlayerHand[len(round.PlayerHand)-1].String(), round.PlayerHand, CalculateCardPoint(round.PlayerHand), round.DealerHand, CalculateCardPoint(round.DealerHand)))
+		RoundMap.Delete(key)
+		return
+	}
+	if playerPoint == 21 {
+		redisrepo.AddUserBalance(ctx.Event.UserID, decimal.NewFromInt(round.Bet).Mul(decimal.NewFromFloat(1.5)).IntPart())
+		ctx.Send(fmt.Sprintf("玩家抽出了一张 %s\n玩家21点, 玩家胜\n玩家手牌: %s\n玩家点数: %d\n庄家手牌: %s\n庄家点数: %d\n游戏结束, 玩家胜", round.PlayerHand[len(round.PlayerHand)-1].String(), round.PlayerHand, CalculateCardPoint(round.PlayerHand), round.DealerHand, CalculateCardPoint(round.DealerHand)))
+		RoundMap.Delete(key)
+		return
+	}
+
+	ctx.Send(fmt.Sprintf("玩家抽出了一张 %s\n玩家手牌: %s\n玩家点数: %d\n庄家点数: %d+?\n到庄家回合", round.PlayerHand[len(round.PlayerHand)-1].String(), round.PlayerHand, playerPoint, CalculateCardPoint(round.DealerHand)))
+	Stand(ctx)
+}
+
 // Hit 玩家要牌
 func Hit(ctx *zero.Ctx) {
 	key := fmt.Sprintf("%d_%d", ctx.Event.GroupID, ctx.Event.UserID)
diff --git a/plugin/chips/rank.go b/plugin/chips/rank.go
index ec16cfe..ff51c42 100644
--- a/plugin/chips/rank.go
+++ b/plugin/chips/rank.go
@@ -4,6 +4,7 @@ import (
 	"amor/proto"
 	redisrepo "amor/repository/redisRepo"
 	"encoding/json"
+	"fmt"
 
 	"github.com/redis/rueidis"
 	zero "github.com/wdvxdr1123/ZeroBot"
@@ -53,7 +54,8 @@ func Rank(ctx *zero.Ctx) {
 
 	var msg string
 	for i, rank := range rankList {
-		msg += "第" + string(i+1) + "名: " + rank.Nickname + " 余额: " + string(rank.Balance) + "\n"
+		// msg += "第" + string(i+1) + "名: " + rank.Nickname + " 余额: " + string(rank.Balance) + "\n"
+		msg += fmt.Sprintf("第%d名: %s 余额: %d\n", i+1, rank.Nickname, rank.Balance)
 	}
 	ctx.Send(msg)
 }
diff --git a/plugin/help.go b/plugin/help.go
index fb9ca30..b7046ca 100644
--- a/plugin/help.go
+++ b/plugin/help.go
@@ -10,5 +10,5 @@ func Help(ctx *zero.Ctx) {
 	ctx.Send(fmt.Sprintf(`欢迎使用NothBot
 chips 查看剩余筹码
 register 注册会员
-21点/bj 开始21点游戏`))
+bj 下注 开始21点游戏`))
 }
diff --git a/router/router.go b/router/router.go
index 846ef61..8ae388b 100644
--- a/router/router.go
+++ b/router/router.go
@@ -10,15 +10,21 @@ import (
 )
 
 func Router() {
+	// 注册
 	zero.OnFullMatch("register").Handle(member.Register)
+
+	// 筹码余额
 	zero.OnFullMatch("chips").Handle(member.GetBalance)
+
+	// 群内筹码排名
 	zero.OnFullMatch("rank").Handle(chips.Rank)
+
+	// 帮助
 	zero.OnFullMatch("help").Handle(plugin.Help)
 
 	// 21点游戏
-	zero.OnFullMatch("21点").Handle(blackjack.BlackJackEntry)
-	zero.OnFullMatch("bj").Handle(blackjack.BlackJackEntry)
-	zero.OnCommand("bet").Handle(blackjack.Bet)
+	zero.OnCommand("bj").Handle(blackjack.BlackJackEntry)
 	zero.OnFullMatch("hit").Handle(blackjack.Hit)
 	zero.OnFullMatch("stand").Handle(blackjack.Stand)
+	zero.OnFullMatch("double").Handle(blackjack.Double)
 }