save project

snake.py

@@ -12,7 +12,8 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
-x,y=240,120
+x,y=240,90
+b=[(180,60),(180,90),(210, 90),(x,y)]
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -21,14 +22,15 @@ while True:
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (x, y))
+    screen.blit(right, b[-1])
     # 将贪吃蛇的身体画上去
-    screen.blit(body, (210, 120))
-    screen.blit(body, (180, 120))
-    screen.blit(body, (180, 90))
+    for i in range(len(b)-1):    
+        screen.blit(body, b[i])
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
     x+=30
+    b.append((x,y))
+    b.pop(0)
     pygame.display.update()
-    a.tick(3)
\ No newline at end of file
+    a.tick(4)
\ No newline at end of file