save project

snake.py

 import pygame
 import pygame
-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()
@@ -10,30 +9,54 @@ screen = pygame.display.set_mode((660, 480))
 # 背景
 # 背景
 background = pygame.image.load('bg.png')
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 right = pygame.image.load('right.png')
+down = pygame.image.load('down.png')
+up = pygame.image.load('up.png')
+left = pygame.image.load('left.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')
 x=240
 x=240
 y=120
 y=120
 f=pygame.time.Clock()
 f=pygame.time.Clock()
+eva="right"
+ave=right
 l=[(210,120),(180,120),(180,90),(x,y)]
 l=[(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 == pygame.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))
+        if event.type==pygame.KEYDOWN:
+            if event.type == pygame.K_RIGHT and eva!="left":
+                eva="right"
+                ave=right
+            if event.type == pygame.K_LEFT and eva!="right":
+                eva="left"
+                ave=left
+            if event.type == pygame.K_UP and eva!="down":
+                eva="up"
+                ave=up
+            if event.type == pygame.K_DOWN and eva!="up":
+                eva="down"
+                ave=down
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去
+    if eva=="left":
+        x=x-30
+    elif eva=="right":
+        x=x+30
+    elif eva=="up":
+        y-=30
+    else:
+        y+=30
     l.append((x,y))
     l.append((x,y))
     l.pop(0)
     l.pop(0)
+    # 将背景图画上去
+    screen.blit(background, (0, 0))
     screen.blit(right,l[-1])
     screen.blit(right,l[-1])
-    x+=30
-    y+=30
 
 
     for i in range(len(l)-1):
     for i in range(len(l)-1):
         screen.blit(body,l[i])
         screen.blit(body,l[i])
     # 将果实画上去
     # 将果实画上去
     screen.blit(food, (360, 300))
     screen.blit(food, (360, 300))
-    f.tick(5)
+    f.tick(4)
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
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