save project

snake.py

 import pygame
 from pygame import locals
+import random
 
 # 初始化pygame，为使用硬件做准备
 pygame.init()
@@ -19,6 +20,9 @@ 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
@@ -52,6 +56,14 @@ while True:
     else:
         y += 30
     position.append((x, y))
+    if x== apple_x and y==apple_y:
+        num1=random.randint(1, 22) 
+        num2=random.randint(1,16)
+        apple_x=30*num1-30
+        apple_y=30*num2-30
+    else:
+       position.pop(0) 
+    
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))