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()
 
@@ -17,6 +17,9 @@ left = pygame.image.load('left.png')        # 头 朝左
 up = pygame.image.load('up.png')            # 头 朝上
 down = pygame.image.load('down.png')        # 头 朝下
 
+apple_x=360
+apple_y=300
+
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
@@ -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
@@ -52,6 +55,12 @@ while True:
     else:
         y += 30
     position.append((x, y))
+    if x==apple_x and apple_y==y:
+        apple_x=random.randint(0,21)
+        apple_x=apple_x*30
+        apple_y=random.randint(0,15)
+        apple_y=apple_y*30
+
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
@@ -62,7 +71,16 @@ 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)
+
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