save project

snake.py

@@ -14,23 +14,37 @@ food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 x,y=240,120
 position=[(210,120),(180,120),(180,90),(x,y)]
+setheading="right"
 while True:
     for event in pygame.event.get():
-        for i in range(len(position)-1)
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
+            #chaoxiang
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and setheading !="left":
+                setheading="right"
+            if event.key==locals.K_LEFT and setheading !="right":
+                setheading="left"
+            if event.key==locals.K_UP and setheading !="down":
+                setheading="up"
+            if event.key==locals.K_DOWN and setheading !="up":
+                setheading="down"
+
+
+
     x +=30
     position.append((x,y))
     position.pop(0)
-    # 将背景图画上去
+    # 将背景图画上去\
     screen.blit(background, (0, 0))
+    screen.blit(right,position[-1] )
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
     # 将贪吃蛇画上去
-    screen.blit(right, (x,y))
+
     # 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))
+    #
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面