save project

snake.py

@@ -63,8 +63,10 @@ while True:
         num2=random.randint(1,16)
         num2=random.randint(1,16)
         apple_x = 30*num1-30
         apple_x = 30*num1-30
         apple_y = 30*num2-30
         apple_y = 30*num2-30
-        
-    position.pop(0)
+    else:
+        position.pop(0)
+    if x<0 or x>630 or y<0 or y>450:
+        exit()         
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     # 将贪吃蛇的头画上去
@@ -75,8 +77,9 @@ while True:
  
  
     # 将果实画上去
     # 将果实画上去
     screen.blit(food, (apple_x,apple_y ))
     screen.blit(food, (apple_x,apple_y ))
-    info = "scre:"+str(scre)
-    text = myfont.render(info,True,(540,10))
+    info = "Scre:"+str(scre)
+    text = my_font.render(info,True,(0,0,0))
+    screen.blit(text,(540,10))
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
     FPSCLOCK.tick(3)
     FPSCLOCK.tick(3)
\ No newline at end of file