save project

my_Tetris.py

@@ -59,6 +59,7 @@ def check(center):
             or cube[1]>grid_num_width:
             return False
 while True:
+    color = random.choice(cube_colors)
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
@@ -72,7 +73,17 @@ while True:
             elif event.key == locals.K_DOWN:    # 向下
                 if center[0] < 25:
                     center[0] += 1
-    color = random.choice(cube_colors)
+
+            elif event.key==locals.K_UP:
+                old_index=index
+                index+=1
+                if index>=len(shape):
+                    index=0
+                current_shape=shape[index]
+                if check(center)==False:
+                    index=old_index
+                    current_shape=shape[index]
+
     # 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