save project

snake.py

@@ -19,6 +19,9 @@ down = pygame.image.load('down.png')        # 头 朝下
 
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
+apple_x=360
+apple_y=300
+
 
 setheading = "right"
 snake_head = right
@@ -48,10 +51,13 @@ while True:
     elif setheading == "left":
         x -= 30
     elif setheading == "up":
-        y -= 30
+        y -= 30 
     else:
         y += 30
     position.append((x, y))
+    if x == apple_x and y == apple_y:
+        apple_x = random.randint (0,660)
+        apple_y = random.randint (0,480)
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))