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()
 
@@ -52,10 +52,13 @@ while True:
     else:
         y += 30
     position.append((x, y))
-    if x=apple_y and y=apple_x:
+    if x=apple_x and y=apple_y:
+        num1=randdom.randint(1,22)
+        num2=randdom.randint(1,16)
         apple_x=random.randiant(0,660)
         apple_x=random.randiant(0,480) 
-    position.pop(0)
+    else:
+        position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去