save project

snake.py

 import pygame
 from pygame import locals
-
+import random
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 
@@ -19,40 +19,44 @@ x,y=240,120
 position=[(180, 90),(180, 120),(210, 120),(x,y)]
 setheading="right"
 snake_haed=right
-
+apple_x=360
+apple_y=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()
         elif event.type == locals.KEYDOWN:
-            if event.type == locals.K_RIGHT and setheading!="left":
+            if event.key == locals.K_RIGHT and setheading!="left":
                 setheading="right"
                 snake_haed=right
-            if event.type == locals.K_RIGHT and setheading!="up":
+            if event.key == locals.K_DOWN and setheading!="up":
                  setheading="down"
                  snake_haed=down
-            if event.type == locals.K_RIGHT and setheading!="right":
+            if event.key == locals.K_LEFT and setheading!="right":
                  setheading="left"
                  snake_haed=left
-            if event.type == locals.K_RIGHT and setheading!="down":
+            if event.key == locals.K_UP and setheading!="down":
                  setheading="up"
                  snake_haed=up
 
-        if setheading="right":
-            x+=30
-        elif setheading="left":
-            x-=30
-        elif setheading="up":
-            y-=30
-        else
-            y+=30
+    if setheading=="right":
+        x+=30
+    elif setheading=="left":
+        x-=30
+    elif setheading=="up":
+        y-=30
+    else:
+        y+=30
     position.append((x,y))
     position.pop(0)
+    if x==apple_x and y==apple_y:
+        apple_x=random.randint(0,660)
+        apple_y=random.randint(0,480)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, position[-1])
+    screen.blit(snake_haed, position[-1])
     # 将贪吃蛇的身体画上去
     for j in range(len(position)-1):
         screen.blit(body,position[j])