介绍一下这个程序的功能： 1，提醒功能。有约会提醒，记念日提醒，每日定时提醒，每周定提醒。 2，定时器。设定小时数，倒数时间，到0时弹出窗口提醒。　 3，秒表。 4，日期计算。计算两个日期之间的天数，计算多少天后是几号。 5，倒计时。记录一个重要的日期，倒数天数。 6，当前日期。显示当前日期，计算这周是从某天开始的第几周。 (非原创)-Explain the function of this procedure: 1, to remind function. Have an appointment reminder, Memorial Day reminded regularly reminded daily, weekly scheduled reminded. 2, timer. Set number of hours, the countdown time, the pop-up window to remind 0:00. 3, stopwatch. 4, the date of the calculation. Between two dates calculated the number of days to calculate the number of days is a few number. 5, the countdown. Records of an important date, the countdown of days. 6, the current date. Displays the current date, calculated from the day this week is the beginning of the first few weeks. (Non-original)