save project

snake.py

@@ -60,6 +60,8 @@ while True:
         apple_y=randint(0,15)*30
     else:
         position.pop(0)
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -67,11 +69,13 @@ while True:
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body, position[i])
+        if position[i]==(x,y):
+            exit()
 
     # 将果实画上去
     screen.blit(food, (apple_x, apple_y))
     text="Score:"+str(score)
-    info=myfont.render(text,True,(0,0,0))
+    info=myfont.render(text,True,(240,0,120))
     screen.blit(info,(540,10))
     # 刷新画面
     pygame.display.update()