save project

snake.py

 import pygame
+import random
+
+
 from pygame import locals
 
 # 初始化pygame，为使用硬件做准备
@@ -22,6 +25,10 @@ position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 setheading = "right"
 snake_head = right
+apple_x = 480
+apple_y = 360
+
+
 
 while True:
     for event in pygame.event.get():
@@ -52,6 +59,11 @@ while True:
     else:
         y += 30
     position.append((x, y))
+    if apple_x == x and apple_y == 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))
@@ -62,7 +74,7 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x,apple_y ))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(3)
\ No newline at end of file
+    FPSCLOCK.tick(3)