save project

snake.py

@@ -54,6 +54,9 @@ while True:
         y += 30
     position.append((x, y))
     position.pop(0)
+    if x==apple_x and y==apple_y:
+        apple_x=r.randint(0,660)
+        apple_y=r.randint(0,480)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -61,9 +64,6 @@ while True:
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body, position[i])
-    if x==apple_x and y==apple_y:
-        apple_x=r.randint(0,660)
-        apple_y=r.randint(0,480)
     # 将果实画上去
     screen.blit(food, (apple_x, apple_y))
     # 刷新画面