save project

snake.py

 import pygame
 from pygame import locals
-
+apx=300
+apy=300
+n1=0
+n2=0
 # 初始化pygame，为使用硬件做准备
 pygame.init()
-
+from random import *
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 FPSCLOCK = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
@@ -41,7 +44,7 @@ while True:
             if event.key == locals.K_DOWN and setheading != "up":
                 setheading = 'down'
                 snake_head = down
-
+            
     # 设置贪吃蛇的头部坐标
     if setheading == "right":
         x += 30
@@ -51,8 +54,14 @@ while True:
         y -= 30
     else:
         y += 30
-    position.append((x, y))
-    position.pop(0)
+    position.append((x, y))    
+    if apx==x and apy==y:
+        n1=randint(1,22)
+        n2=randint(1,16)
+        apx=30*n1-30
+        apy=30*n2-30
+    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
@@ -62,7 +71,7 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apx, apy))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
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