save project

snake.py

@@ -52,6 +52,8 @@ while True:
         y -= 30
     else:
         y += 30
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
     position.append((x, y))
     if x==apple_x and y==apple_y:
         n1=random.randint(0,21)
@@ -74,7 +76,7 @@ while True:
     myfont=pygame.font.Font("neuropol.ttf",18)
     info="score:"+str(score)
     txt=myfont.render(info,True,(0,0,0))
-    screen.blit(txt,(540,100))
+    screen.blit(txt,(540,10))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
\ No newline at end of file