save project

snake.py

@@ -64,9 +64,12 @@ while True:
         num2=random.randint(1,16)
         apple_x=num1*30-30
         apple_y=num2*30-30
+        score+=100
     else:
         position.pop(0)
 
+    if x<0 or x>630 or y<0 or <0 or y>450:
+
 
     # 将背景图画上去
     screen.blit(background, (0, 0))