save project

snake.py

@@ -3,6 +3,7 @@ from pygame import locals
 # 初始化pygame，为使用pygame做准备
 pygame.init()
 x,y=240,360
+a=[(150,360),(180,360),(210,360),(x,y)]
 # 创建一个窗口
 screen=pygame.display.set_mode((660,480))
 FPSCLOCK=pygame.time.Clock()
@@ -16,11 +17,12 @@ while True:
         if event.type == locals.QUIT:
             exit()
     x+=30
+    a.append((x,y))
+    a.pop(0)
     screen.blit(background,(0,0))
-    screen.blit(right,(x,y)) 
+    screen.blit(right,a[-1]) 
+    for i in range(len(a)-1):
+        screen.blit(body,a[i])
     screen.blit(food,(330,420))
-    screen.blit(body,(210,360))
-    screen.blit(body,(180,360))
-    screen.blit(body,(150,360))
     pygame.display.update()
     FPSCLOCK.tick(3)
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