diff --git a/my_Tetris.py b/my_Tetris.py
index 80cdd0d..3146f57 100644
--- a/my_Tetris.py
+++ b/my_Tetris.py
@@ -56,6 +56,9 @@ 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():
@@ -115,7 +118,28 @@ while True:
                     (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
+    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
+    
+    
     text_surface = font.render(str(score), True, (0, 0, 0))
     screen.blit(text_surface, (350,70))
     # 刷新画面