后台定时器，可设定每天定时提醒，指定日期提前提醒，一次性定时提醒等，可放入启动菜单，小巧实用，源码自编，绿色无害。 vb .net 编写-Background timer, you can set time every day to remind, remind specified date in advance, one-time regular reminders, can be placed in the boot menu, compact and practical, source