save project

snake.py

@@ -3,31 +3,26 @@ from pygame import locals
 
 
 # 初始化pygame，为使用硬件做准备
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 pygame.init()
-x,y=240,120
-ea=[(180,90),(180,120),(210,120),(x,y)]
 # 创建一个窗口
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 screen = pygame.display.set_mode((660, 480))
 abc=pygame.time.Clock()
 abc=pygame.time.Clock()
 # 背景
 # 背景
-left=pygame.image.load('left.png')
-up=pygame.image.load('up.png')
-down=pygame.image.load('down.png')
-snack_head='right'
 background = pygame.image.load('bg.png')
 background = pygame.image.load('bg.png')
-setheading = 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')
+x,y=240,120
+ea=[(180,90),(180,120),(210,120),(x,y)]
+setheading='right'
+snack_head=right
 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()
-    # 将背景图画上去
-    screen.blit(background, (0, 0))
-    x+=30
-    ea.append((x,y))
-    ea.pop(0)
-    # 将贪吃蛇画上去
         elif event.type==locals.KEYDOWN:
         elif event.type==locals.KEYDOWN:
             if event.key==locals.K_RIGHT and setheading!='left':
             if event.key==locals.K_RIGHT and setheading!='left':
                 setheading='right'
                 setheading='right'
@@ -41,14 +36,19 @@ while True:
             if event.key==locals.K_DOWN and setheading!='up':
             if event.key==locals.K_DOWN and setheading!='up':
                 setheading='down'
                 setheading='down'
                 snack_head=down
                 snack_head=down
-            if setheading=='right':
-                x+=30
-            elif setheading=='left':
-                x-=30
-            elif setheading=='up':
-                y-=30
-            else:
-                y+=30
+    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))
+    ea.append((x,y))
+    ea.pop(0)
+    # 将贪吃蛇画上去
     screen.blit(snack_head,ea[-1])
     screen.blit(snack_head,ea[-1])
     # 将贪吃蛇的身体画上去
     # 将贪吃蛇的身体画上去
     for i in range(len(ea)-1):
     for i in range(len(ea)-1):