save project

snake.py

@@ -32,6 +32,13 @@ while True:
         apple_y = random.randrange(0,480,30)
     else:
         longs.pop(0)
+    if x <0 or x>660 or y<0 or y >480:
+        screen.blit(food, (apple_x,apple_y))
+        text = "game over"
+        Myscore = my_font.render(text,Ture,(0,0,0))
+        screen.blit(Myscore,(330,140))
+        exit()
+            
             # 将背景图画上去
     screen.blit(background,(0, 0))
     # 将贪吃蛇画上去