save project

snake.py

@@ -22,7 +22,7 @@ x, y = 240, 120
 apple_x=360
 apple_y=300
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
-score=1
+score=0
 setheading = "right"
 snake_head = right
 
@@ -63,6 +63,8 @@ while True:
         score+=10
     else:
         position.pop(0)
+    if x<0 or x>650 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
@@ -73,9 +75,9 @@ while True:
 
     # 将果实画上去
     screen.blit(food, (apple_x, apple_y))
-    info='Score'+str(score)
-    text=my_font.render(info,True,(255,255,255))
+    info='Score:'+str(score)
+    text=my_font.render(info,True,(0,0,0))
     screen.blit(text,(540,10))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(3)
\ No newline at end of file
+    FPSCLOCK.tick(20)
\ No newline at end of file