diff --git a/src/rooms/commands/DiscardCommand.ts b/src/rooms/commands/DiscardCommand.ts
index e995526..1bdfd38 100644
--- a/src/rooms/commands/DiscardCommand.ts
+++ b/src/rooms/commands/DiscardCommand.ts
@@ -35,7 +35,7 @@ export class DiscardCommand extends Command<CardGameState, { client: Client, car
                     error(`${player.id} 的手牌 ${id} 数据有问题`);
                     continue;
                 }
-                tmpCards.push(player.cards.get(id + ''));
+                tmpCards.push(player.cards.get(id + '').clone());
             } else {
                 error(`${player.id} 出的牌 ${id} 在手牌中不存在`)
                 this.room.send(client,'discard_card_s2c', {errcode: 2, errmsg: `要出的牌 ${id} 在手牌中不存在`});
diff --git a/src/rooms/commands/EatConfirmCommand.ts b/src/rooms/commands/EatConfirmCommand.ts
index efc4333..27d0645 100644
--- a/src/rooms/commands/EatConfirmCommand.ts
+++ b/src/rooms/commands/EatConfirmCommand.ts
@@ -72,13 +72,14 @@ export class EatConfirmCommand extends Command<CardGameState, { timeUp: boolean
             let currentPlayer = this.state.players.get(this.state.currentTurn);
             currentPlayer.cardQueue.clear();
             player.cardQueue.clear();
-            player.cardQueue.push(this.state.cards.values().next().value);
+            player.cardQueue.push(this.state.cards.values().next().value.clone());
             for (let id of cards) {
                 if (!player.cards.has(id + '')) {
                     continue;
                 }
-                this.state.cards.set(id + '', player.cards.get(id + ''));
-                player.cardQueue.push(player.cards.get(id + ''));
+                let card = player.cards.get(id + '').clone();
+                this.state.cards.set(id + '', card);
+                player.cardQueue.push(card);
                 player.cards.delete(id + '');
                 player.cardSet.delete(id + '');
             }
diff --git a/src/rooms/commands/OnJoinCommand.ts b/src/rooms/commands/OnJoinCommand.ts
index 5319443..53f933f 100644
--- a/src/rooms/commands/OnJoinCommand.ts
+++ b/src/rooms/commands/OnJoinCommand.ts
@@ -12,7 +12,7 @@ export class OnJoinCommand extends Command<CardGameState, {
     client: Client
 }> {
     execute({client} = this.payload) {
-        let team = this.state.players.size / 2 | 0;
+        let team = (this.state.players.size == 1 || this.state.players.size == 2)? 1 : 0;
         // 实际的team会在PlayReadyCommand中设置
         let player = new Player(client.sessionId, 0, team);
         this.state.players.set(client.sessionId, player);
diff --git a/src/rooms/commands/PlayReadyCommand.ts b/src/rooms/commands/PlayReadyCommand.ts
index 0778f1c..6f60ceb 100644
--- a/src/rooms/commands/PlayReadyCommand.ts
+++ b/src/rooms/commands/PlayReadyCommand.ts
@@ -32,7 +32,8 @@ export class PlayReadyCommand extends Command<CardGameState, {
             // return [new PrepareCommand()];
             let i = 0;
             for (let [,player] of this.state.players) {
-                player.team = (i ++ / 2) | 0;
+                player.team = (i == 1 || i == 2) ? 1 : 0;
+                i += 1;
             }
             await this.room.setPrivate(true);
             this.room.state.updateGameState(GameStateConst.CHANGE_HERO);