用c#编写的一个简单的万年历查询器，只能查询每个月的一号。无图形输出，那位仁兄有意可以加一个。运行平台为asp.net+iis.-a simple perpetual calendar inquirier developed with c#,it can only query the first　day of each month. there is no graphic output, and I hope someone could add it. running platform is asp.net+iis.