diff --git a/draw.py b/draw.py
index b2c97ec..a4fde7c 100644
--- a/draw.py
+++ b/draw.py
@@ -1,5 +1,5 @@
 import pygame, sys,threading
-
+import json
 
 def sendDraw(sock):
     white= (255, 255, 255)
@@ -7,7 +7,7 @@ def sendDraw(sock):
 
     pygame.init()
     pygame.display.set_caption('Mouse Example')
-    size= [640, 480]
+    size= [1080, 480]
     screen= pygame.display.set_mode(size)
     clock= pygame.time.Clock()
 
@@ -19,6 +19,7 @@ def sendDraw(sock):
     mouseFlag = False
     screen.fill((255, 255, 255))
     pygame.display.update()
+    
     while True:
         for event in pygame.event.get():
             if event.type== pygame.QUIT:
@@ -89,7 +90,7 @@ def receiveDraw(sock):
 
     pygame.init()
     pygame.display.set_caption('Mouse Example')
-    size= [640, 480]
+    size= [1080, 480]
 
     screen= pygame.display.set_mode(size)
 
@@ -109,7 +110,22 @@ def receiveDraw(sock):
             startFlag = False
             pygame.quit()
             sys.exit()
-        print(data)
+        elif data[0:6] == "[list]":
+            listSTR = data[7:]
+            
+            listJSON = json.loads(listSTR)
+            #[['127.0.0.1', 52362], ['127.0.0.1', 52370]]
+            y = 100
+            cross = 20
+            for sockName in listJSON:
+                pygame.draw.rect(screen,(171, 254, 250),[900,y,200,30],0)    # 輸入匡的矩形
+                pgStringVar = pygame.font.Font(None,25).render(str(sockName),False,(0,0,0))# 文字物件
+                screen.blit(pgStringVar,(910,y+10))# draw font
+                pygame.display.update()
+                y = y+30+cross
+
+            continue
+        #print(data)
         li = data.split('+')   # 送來的座標可能一次有多個，規範以+隔開
         for i in li:
             if i!="":
diff --git a/main.py b/main.py
index 54cadd3..fc586ed 100644
--- a/main.py
+++ b/main.py
@@ -92,6 +92,7 @@ class Room:
         self.ip = ip
         self.portNum = portNum
         self.problem = self.getProblem()
+        print(self.problem)
     def start(self):
         # Build a room's socket to start game
         listensock = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
@@ -103,11 +104,15 @@ class Room:
             print("[ {} ]{} has connected.".format(self.portNum,sockname))
 
             self.sockList.append(sock)      # 把sock放入list
-            
+            allPeerName = []
+            for i in self.sockList:
+                allPeerName.append(i.getpeername())
+            for sock in self.sockList:
+                sock.send("[list] {}".format(json.dumps(allPeerName)).encode('utf-8'))
             receiveDataThread = threading.Thread(target=self.receiveData,args=(sock,))
             # 負責與client通信，傳輸遊戲所必須的指令
             receiveDataThread.start()
-
+            
     def connect(self):
         time.sleep(0.5)
         sock = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
@@ -130,6 +135,8 @@ class Room:
                     for clientSock in self.sockList:    # 遍歷socket list
                         if clientSock != sock:          # 不是自己的才傳送資料.Needn't send position to MAIN
                             clientSock.send(origin) 
+
+
                 else:   # it is from other client. He/she want to send answer to check the answer
                     if data == self.problem:
                         sock.send('y'.encode('utf-8'))
@@ -167,7 +174,7 @@ class Client:
             # receiveDataThread.start()
             # sendDataThread = threading.Thread(target=self.sendData,args=(sock,))
             # sendDataThread.start()
-            draw.sendDraw(sock,)    # 開始繪圖
+            draw.sendDraw(sock)    # 開始繪圖
 
         elif receiveMsg=="OK.CLIENT":
             roomNum = input("Room Number> ")