diff --git a/demo1.py b/demo1.py
new file mode 100644
index 0000000..f862a50
--- /dev/null
+++ b/demo1.py
@@ -0,0 +1,2 @@
+11 = [0]*15
+print(11)
\ No newline at end of file
diff --git a/my_Tetris.py b/my_Tetris.py
index 0eef9fb..05d41ec 100644
--- a/my_Tetris.py
+++ b/my_Tetris.py
@@ -13,7 +13,7 @@ states = False
 
 # 创建窗口
 screen = pygame.display.set_mode((460, 500))
-pygame.display.set_caption("俄罗斯方块")
+pygame.display.set_caption("常天佑方块")
 clock = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
 # 载入素材
 background = pygame.image.load('bg.png')
@@ -47,6 +47,10 @@ cube_colors = [
     (255, 204, 0), (204, 0, 51),(255, 0, 51), (0, 102, 153),
     (153, 0, 51), (204, 255, 102), (255, 153, 0)]
 
+num_list=[]
+for i in range(25):
+    num_list.append([0]*15)
+
 def check(center):
     for cube in current_shape:
         cube = (cube[0] + center[0], cube[1] + center[1])
@@ -54,7 +58,8 @@ def check(center):
         if cube[0] < 1 or cube[1] < 1 or cube[0] > grid_num_height \
                 or cube[1] >grid_num_width:
             return False
-
+        if num_list[cube[0]-1][cube[1]-1]!=0:
+            return False
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -97,7 +102,9 @@ while True:
         center[0] = center[0] + 1
         if check(center) == False:
             center[0] = center[0] - 1      
-            states = False      
+            states = False
+            for cube in current_pos:
+                num_list[cube[0]-1][cube[1]-1]=color
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 计算出所有小方块的行、列位置