auto save

snake.py

+import pygame
+from pygame import locals
+import random
+from random import randint
+# 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))
+
+Time = pygame.time.Clock()
+# 背景
+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
+body2 = [(180,90),(180,120),(210,120),(x, y)]
+
+
+
+setheading = 'right'
+head = right
+apple_x , apple_y = randint(0,21)*30,randint(0,15)*30
+
+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'
+                head = right
+            if event.key == locals.K_LEFT and setheading != 'right':
+                setheading = 'left'
+                head = left
+            if event.key == locals.K_UP and setheading != 'down':
+                setheading = 'up'
+                head = up
+            if event.key == locals.K_DOWN and setheading != 'up':
+                setheading = 'down'
+                head = down
+
+    if setheading == 'right':
+        x +=30
+    elif setheading == 'left':
+        x -=30
+    elif setheading == 'up':
+        y -=30
+    else:
+        y +=30
+
+    if x == apple_x and y == apple_y:
+        apple_x = random.randint(0,21)*30
+        apple_y = random.randint(0,15)*30       
+
+    # 将背景图画上去
+    
+    body2.append((x, y))
+    body2.pop(0)
+    screen.blit(background, (0, 0))
+    # 将贪吃蛇画上去
+    screen.blit(head, body2[-1])
+    # 将贪吃蛇的身体画上去
+    for i in range(len(body2)-1):
+        screen.blit(body, body2[i])
+    # 将果实画上去
+    screen.blit(food, (apple_x, apple_y))
+    # 刷新画面
+    pygame.display.update()
+    Time.tick(3)
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