save project

snake.py

 import pygame
 from pygame import locals
+import random
 # 初始化pygame，为使用pygame做准备
 pygame.init()
 
@@ -7,35 +8,54 @@ pygame.init()
 screen = pygame.display.set_mode((660,480))
 fps = pygame.time.Clock()
 bg=pygame.image.load('bg.png')
+right = pygame.image.load('right.png')
+left = pygame.image.load('left.png')
+down = pygame.image.load('down.png')
+up = pygame.image.load('up.png')
 apple = pygame.image.load('apple.png')
-snake = pygame.image.load('right.png')
 body = pygame.image.load('body.png')
 x=60
 y=420
 pos=[(60,360),(60,390),(60,420),(x,y)]
 head='right'
+a_x=360
+a_y=300
+tou=right
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
         if event.type == locals.KEYDOWN:
-            if event.key==K_RIGHT and head!='left':
+            if event.key==locals.K_RIGHT and head!='left':
                 head='right'
-            if event.key==K_RIGHT and head!='right':
+            if event.key==locals.K_LEFT and head!='right':
                 head='left'
-            if event.key==K_RIGHT and head!='down':
+            if event.key==locals.K_UP and head!='down':
                 head='up'
-            if event.key==K_RIGHT and head!='up':
+            if event.key==locals.K_DOWN and head!='up':
                 head='down'
-    x+=30
+    if head=="right":
+        x+=30
+        tou=right
+    if head=="left":
+        x-=30
+        tou=left
+    if head=="down":
+        y+=30
+        tou=down
+    if head=="up":
+        y-=30
+        tou=up
     pos.append((x,y))
     pos.pop(0)
+    if x==a_x and y==a_y:
+        a_x=random.randint(0,22)*30
+        a_y=random.randint(0,16)*30
     screen.blit(bg,(0,0))
-    screen.blit(apple,(300,30))
-    screen.blit(snake,(x,y))
+    screen.blit(tou,(x,y))
     for i in range(len(pos)-1):
         screen.blit(body,pos[i])
-    
+    screen.blit(apple,(a_x,a_y))
     pygame.display.update()
     fps.tick(3)
         
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