save project

snake.py

@@ -51,9 +51,11 @@ while True:
     else:
          y += 30
     position.append((x,y))
+
     if x == apple_x and y == apple_y:
-        apple_x = random.randint(0,660) 
-        apple_y = random.randint(0,480)
+        apple_x = random.randint(0,22)*30 
+        apple_y = random.randint(0,18)*30
+
     position.pop(0)            
     # 将背景图画上去
     screen.blit(background, (0, 0))
@@ -63,7 +65,7 @@ while True:
     for i in range(len(position)-1):
         screen.blit(body, position[i])
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x, apple_y))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)