save project

snake.py

 import pygame
 from pygame import locals
 
+from random import randint
+
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 
@@ -23,22 +25,25 @@ position = [(180, 90), (180, 120), (210, 120), (x, y)]
 setheading = "right"
 snake_head = right
 
+applex = 360
+appley = 300
+
 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":
+            if event.key == locals.K_d and setheading != "left":
                 setheading = 'right'
                 snake_head = right
-            if event.key == locals.K_LEFT and setheading != "right":
+            if event.key == locals.K_a and setheading != "right":
                 setheading = 'left'
                 snake_head = left
-            if event.key == locals.K_UP and setheading != "down":
+            if event.key == locals.K_w and setheading != "down":
                 setheading = 'up'
                 snake_head = up
-            if event.key == locals.K_DOWN and setheading != "up":
+            if event.key == locals.K_s and setheading != "up":
                 setheading = 'down'
                 snake_head = down
 
@@ -51,6 +56,10 @@ while True:
         y -= 30
     else:
         y += 30
+
+    if applex == x and appley == y:
+        applex = randint(0,660)
+        appley = randint(0,480)  
     position.append((x, y))
     position.pop(0)
     # 将背景图画上去
@@ -62,7 +71,7 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (applex,appley))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
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