年历系统首先对于输入的任一年,能够给出该年每月的日期及实际周几的对应情况,并与实际的星期数垂直对齐,如下表所示(当输入2004时显示如下): Input the year:2004 The calendar of the year 2004. Januray 1 February 2 ============================== ============================== Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed T