说明：  画先显示一些提示信息，然后按任意键进入，只见一个方框向中 间由大变小，并留下痕迹，然后出现一个心，按空格重复出现心，按其他 键将重复,按Q键退出程序，。
(First painting show some message, and then press any key to enter, I saw a box to the center by a small change, leaving traces, and then a heart, according to space recurring heart, according to other keys will be repeated, according to Q to exit procedures.)