save project

snake.py

@@ -17,6 +17,8 @@ up=pygame.image.load('up.png')
 down=pygame.image.load('down.png')
 x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
+apple_x=360
+apple_y=360
 
 setheading="right"
 snake_head=right
@@ -47,6 +49,9 @@ while True:
     else:
         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)
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
@@ -56,7 +61,7 @@ while True:
     for i in range(len(position)-1):
         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)
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