save project

snake.py

 import pygame
 import random
 from pygame import locals
-FK = pygame.time.Clock()
+FPSCLOCE = pygame.time.Clock()
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 
@@ -53,8 +53,11 @@ while True:
         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)
+        num1=random.randint(1,22)
+        num2=random.randint(1,16)
+        apple_x = num1*30-30
+        apple_y = num2*30-30
+    else:
         position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
@@ -67,4 +70,4 @@ while True:
     screen.blit(food,(apple_x,apple_y))
     # 刷新画面
     pygame.display.update()
-    FK.tick(3)
+    FPSCLOCE.tick(3)