save project

snake.py

@@ -12,14 +12,35 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
+down = pygame.image.load('down.png')
+left = pygame.image.load('left.png')
+up = pygame.image.load('up.png')
 x,y=240,120
 postion=[(180,90),(180,120),(210,120),(x,y)]
+sb="right"
+dsb=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==locals.K_RIGHT and sb!="left":
+                sb="right"
+                dsb=right
+                x+=30
+            if event.key==locals.K_LEFT and sb!="right":
+                sb="left"
+                dsb=left
+                x-=30
+            if event.key==locals.K_UP and sb!="down":
+                sb="up"
+                dsb=up
+                y-=30
+            if event.key==locals.K_DOWN and sb!="up":
+                sb="down"
+                dsb=down
+                y+=30
     postion.append((x,y))
     postion.pop(0)
     screen.blit(background, (0, 0))
@@ -34,4 +55,4 @@ while True:
     x=x+30
     # 刷新画面
     pygame.display.update()
-    weee.tick(30)
\ No newline at end of file
+    weee.tick(3)
\ No newline at end of file