save project

snake.py

@@ -12,10 +12,14 @@ 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
 tcsh=[(180,90),(180,120),(210,120),(x,y)]
 seth="right"
+sn_hd=right
 
 while True:
     for event in pygame.event.get():
@@ -23,14 +27,18 @@ while True:
             # 接收到退出事件后退出程序
             exit()
         if event.type == locals.KEYDOWN:
-            if event.type==locals.K_RIGHT and seth != "left":
+            if event.key==locals.K_RIGHT and seth != "left":
                 seth="right"
-            if event.type==locals.K_LEFT and seth != "right":
+                sn_hd=right
+            if event.key==locals.K_LEFT and seth != "right":
                 seth="left"
-            if event.type==locals.K_DOWN and seth != "up":
+                sn_hd=left
+            if event.key==locals.K_DOWN and seth != "up":
                 seth="down"
-            if event.type==locals.K_UP and seth != "down":
+                sn_hd=down
+            if event.key==locals.K_UP and seth != "down":
                 seth="up"
+                sn_hd=up
     if seth == "right":
         x+=30
     elif seth == "left":
@@ -45,7 +53,7 @@ while True:
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, tcsh[-1] )
+    screen.blit(sn_hd, tcsh[-1] )
     # 将贪吃蛇的身体画上去
     for i in range(len(tcsh)-1):
         screen.blit(body,tcsh[i])