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snake.py

+import pygame
+from pygame import locals
+
+# 初始化pygame，为使用硬件做准备
+pygame.init()
+
+# 创建一个窗口
+screen = pygame.display.set_mode((660, 480))
+FPSCLOCK = pygame.time.Clock()#计时器
+# 背景
+background = pygame.image.load('bg.png')
+right = pygame.image.load('right.png')
+up = pygame.image.load('up.png')
+down = pygame.image.load('down.png') 
+left= pygame.image.load('left.png')
+food = pygame.image.load('apple.png')
+body = pygame.image.load('body.png')
+#
+x=240
+y=120
+setheading='right'
+snake_head=right
+position = [(210, 120),(180, 120),(180, 90),(x,y)]
+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 setheading !='left':
+                setheading='right'
+                snake_head=right
+            if event.key==locals.K_LEFT and setheading !='right':
+                setheading='left'
+                snake_head=left
+            if event.key==locals.K_UP and setheading !='down':
+                setheading='up'
+                snake_head=up
+            if event.key==locals.K_DOWN and setheading !='up':
+                setheading='down'
+                snake_head=down
+    if setheading=='right':
+        x+=30
+    elif setheading=='left':
+        x-=30
+    elif setheading=='up':
+        y-=30
+    else:
+        y+=30
+    position.append((x,y))#追加身体的坐标
+    position.pop(0)#删除身体末尾的旧坐标
+    # 将背景图画上去
+    screen.blit(background, (0, 0))
+    # 将贪吃蛇画上去
+    screen.blit(right, (x,y))
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
+    # 将贪吃蛇的身体画上去
+    # screen.blit(body,(180, 120))
+    # screen.blit(body,(180, 90))
+    # screen.blit(body,(180,90))
+    # 将果实画上去
+    screen.blit(food, (360, 300))
+    # 刷新画面
+    pygame.display.update()
+    FPSCLOCK.tick(3)#调用FPSCLOCK变量，控制帧数
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