save project

snake.py

@@ -21,14 +21,19 @@ while True:
             # 接收到退出事件后退出程序
             exit()
      x+=30
+     position.append(x,y)
+     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
+    screen.blit(right,positian[-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(positian)-1)
+        screen.blit(body, positian[i])
+
+        screen.blit(boby,(210,120))
+        screen.blit(boby,(180,120))
+        screen.blit(boby,(180,90))
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面