save project

snake.py

@@ -12,14 +12,39 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.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')
+right_a='right'
+right_b='right'
 x,y=240,120
 x,y=240,120
-abab=[(),(180,120),(180,90),(x,y)]
+abab=[(210,120),(180,120),(180,90),(x,y)]
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
-        x
+        if event.type == locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and right_a !='left':
+                right=='right'
+                snake_b=right
+            if event.key==locals.K_LEFT and right_a !='right':
+                right_a=='left'
+                snake_b=left
+            if event.key==locals.K_UP and right_a !='down':
+                right_a=='up'
+                snake_b=up
+            if event.key==locals.K_DOWN and right_a !='up':    
+                right_a=='down'
+                snake_b=down
+    if right_a=='right':
+        x+=30
+    if right_a=='left':
+        x+=30
+    if right_a=='up':
+        x+=30
+    if right_a=='down':
+        x+=30
         abab.append((x,y))
         abab.append((x,y))
         abab.pop(0)
         abab.pop(0)
     # 将背景图画上去
     # 将背景图画上去