save project

snake.py

@@ -55,8 +55,11 @@ while True:
         num2=random.randint(1,16)
         num2=random.randint(1,16)
         apple_x=num1*30-30
         apple_x=num1*30-30
         apple_y=num2*30-30
         apple_y=num2*30-30
+        score+=1
     else:
     else:
         p.pop(0)
         p.pop(0)
+    if x<0 or x>630 or y<0 or y>450:
+        exit()    
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去
     screen.blit(s,p[-1])
     screen.blit(s,p[-1])