auto save

snake.py

+import pygame
+from pygame import locals
+# 初始化pygame，为使用pygame做准备
+pygame.init()
+screen=pygame.display.set_mode(size=(800,600))
+bg=pygame.image.load('bg.png')
+c=pygame.image.load('apple.png')
+ui=pygame.image.load('right.png')
+bb=pygame.image.load('body.png')
+shi = pygame.time.Clock()
+nn=[(0,0),(150,150),(150,180),(180,180)]
+x,y=180,180
+while True:
+    for event in pygame.event.get():
+        if event.type==locals.QUIT:
+            exit()
+    x+=30
+    screen.blit(bg,(0,0))
+    screen.blit(c,(210,300))
+    nn.append((x,y))
+    nn.pop(0)
+    screen.blit(ui,(x,y))
+    for i in range(len(nn)-1):
+        screen.blit(bb,nn[i])
+    # screen.blit(bb,(180,180))
+    pygame.display.update()
+    shi.tick(3)
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