save project

my_Tetris.py

@@ -75,7 +75,12 @@ while True:
             elif event.key == locals.K_DOWN:    # 向下
                 if center[0] < 25:
                     center[0] += 1
-
+            elif event.key == locals.K_UP:
+                old_index = index
+                if index < len(current_shape):
+                    index =+ 1
+                    if center >  grid_num_width - 1:
+                        index = old_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