diff --git a/my_Tetris.py b/my_Tetris.py
index 0eef9fb..cf97778 100644
--- a/my_Tetris.py
+++ b/my_Tetris.py
@@ -10,7 +10,7 @@ grid_num_height = 25      # 纵向格子数量
 FPS = 30                # 帧率
 count = 0
 states = False
-
+gameover = False
 # 创建窗口
 screen = pygame.display.set_mode((460, 500))
 pygame.display.set_caption("俄罗斯方块")
@@ -45,7 +45,7 @@ shape_list = [I, J, L, O, S, T, Z]  # 7种类型俄罗斯方块
 cube_colors = [
     (204, 153, 153), (102, 102, 153),(153, 0, 102), 
     (255, 204, 0), (204, 0, 51),(255, 0, 51), (0, 102, 153),
-    (153, 0, 51), (204, 255, 102), (255, 153, 0)]
+    (153, 0, 51), (204, 255, 102), (255, 153, 0)]   
 
 def check(center):
     for cube in current_shape:
@@ -54,12 +54,19 @@ 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
 
+num_list = []
+for i in range(25):
+    num_list.append([0]*15)
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
         if event.type == locals.KEYDOWN:
+            if gameover == True:
+                gameover = False
             if event.key == locals.K_LEFT:    # 向左
                 center[1] = center[1] - 1       # 左移1列
                 if check(center) == False:
@@ -85,35 +92,71 @@ while True:
                     index = old_index
                     current_shape = shape[index]
 
-    if states == False:
-        states = True
-        center = [2, 8]     # 第2行第8列
-        shape = random.choice(shape_list)
-        index = random.randint(0, len(shape)-1)     # 随机形状索引
-        current_shape = shape[index]
-        color = random.choice(cube_colors)         # 随机选取一种颜色
-    count += 1
-    if count % FPS == 0:           # 降落速度的算式
-        center[0] = center[0] + 1
-        if check(center) == False:
-            center[0] = center[0] - 1      
-            states = False      
-    # 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
-    current_pos = []
-    for cube in current_shape:
-        pos = (cube[0] + center[0], cube[1] + center[1])
-        current_pos.append(pos)
-    # 取出所有小方块的行、列位置,计算坐标,绘制俄罗斯方块
-    for cube in current_pos:
-        pygame.draw.rect(screen, color,
-                    (cube[1] * 20-20, cube[0] * 20-20, 20, 20), 0)
-        pygame.draw.rect(screen, (255, 255, 255), 
-                        (cube[1] * 20-20, cube[0] * 20-20, 20, 20), 1)
-    # 得分
-    text_surface = font.render(str(score), True, (0, 0, 0))
-    screen.blit(text_surface, (350,70))
+    if gameover == False:
+        if states == False:
+            states = True
+            center = [2, 8]     # 第2行第8列
+            shape = random.choice(shape_list)
+            index = random.randint(0, len(shape)-1)     # 随机形状索引
+            current_shape = shape[index]
+            color = random.choice(cube_colors)         # 随机选取一种颜色
+        count += 1
+        if count % FPS == 0:           # 降落速度的算式
+            center[0] = center[0] + 1
+            if check(center) == False:
+                center[0] = center[0] - 1      
+                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
+        current_pos = []
+        for cube in current_shape:
+            pos = (cube[0] + center[0], cube[1] + center[1])
+            current_pos.append(pos)
+        # 取出所有小方块的行、列位置,计算坐标,绘制俄罗斯方块
+        for cube in current_pos:
+            pygame.draw.rect(screen, color,
+                        (cube[1] * 20-20, cube[0] * 20-20, 20, 20), 0)
+            pygame.draw.rect(screen, (255, 255, 255), 
+                            (cube[1] * 20-20, cube[0] * 20-20, 20, 20), 1)
+        for i,row in zip (range(1,26),num_list):
+            for j,colors in zip(range(1,16),row):
+                if colors!= 0:
+                    pygame.draw.rect(screen,colors,(j*20-20,i*20-20,20,20))
+                    pygame.draw.rect(screen,(255,255,255),(j*20-20,i*20-20,20,20),1)
+
+
+        new_list = []
+        for i in range(25):
+            new_list.append([0]*15)
+        row_index = 24
+        for i in range(24,-1,-1):
+            is_full = True
+            for j in range(grid_num_width):
+                if num_list[i][j] == 0:
+                    is_full = False
+            if is_full == False:
+                new_list[row_index] = num_list[i]
+                row_index-= 1
+            else:
+                score +=1
+        num_list = new_list
+        if num_list[1][7]!= 0:
+            gameover =True
+            num_list = []
+            for i in range(25):
+                num_list.append([0]*15)
+
+        # 得分
+        text_surface = font.render(str(score), True, (0, 0, 0))
+        screen.blit(text_surface, (350,70))
+        if gameover == True:
+            text = font.render('菜鸡!又挂了,按任意键在玩',True,(0,0,0))
+            screen.blit(text,(20,250))
+            score = 0
+
     # 刷新画面
     pygame.display.update()
     clock.tick(FPS)