save project

snake.py

 import pygame
-
+from pygame import locals
 # 初始化pygame，为使用pygame做准备
 pygame.init()
-
+background=pygame.image.load('bg.png')
+right=pygame.image.load('right.png')
+body=pygame.image.load('body.png')
+food=pygame.image.load('apple.png')
+left=pygame.image.load('left.png')
+up=pygame.image.load('up.png')
+down=pygame.image.load('down.png')
 # 创建一个窗口
-screen=pygame.display.set_mode((800,600))
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+x,y=240,120
+f=[(210,120),(180,120),(180,90),(x,y)]
+setheading="right"
+snake_head = right
+
+screen=pygame.display.set_mode((800,600))
+FPSCLOCK=pygame.time.Clock()
+while True:
+    for event in pygame.event.get():
+        if event.type==locals.QUIT:
+            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
+
+    f.append((x, y))
+    f.pop(0)
+    screen.blit(background,(0,0))
+
+    screen.blit(snake_head,f[-1])
+    for i in range(len((f))-1):
+         screen.blit(body,f[i])
+
+    screen.blit(food,(360,300))
+
+    pygame.display.update()
+    FPSCLOCK.tick(3)
+    
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