save project

snake.py

@@ -12,15 +12,42 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
-
+left = pygame.image.load('left.png')
+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)]
+setheading="right"
+snack_head=right
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
+        if event.type==locals.KEYDOWN:
+            if event.KEY==locols.K_RIGHT and setheading!="left":
+                setheading="right"
+                snack_head=right
+            if event.KEY==locols.K_LEFT and setheading!="right":
+                setheading="left"
+                snack_head=left
+            if event.KEY==locols.K_UP and setheading!="down":
+                setheading="up"
+                snack_head=up
+            if event.KEY==locols.K_DOWN and setheading!="up":
+                setheading="down"
+                snack_head=down
+    if setheading=="right":
+        x+=30
+    elif setheading=="left":
+        x-=30
+    elif setheading=="up":
+        y-=30
+    else:
+        y+=30
     # 将背景图画上去
     screen.blit(background, (0, 0))
-    # 将贪吃蛇画上去
+    # 将贪吃蛇画.上去
     screen.blit(right, (240, 120))
     # 将贪吃蛇的身体画上去
     screen.blit(body, (210, 120))