在Xilinx ISE软件下关于瑞年计数器的工程，可以判断某一年份是否为瑞年。包含代码及测试代码，已经通过编译，综合，仿真波形完全正确。-Under the Xilinx ISE software counters on the Swiss-year project, can determine whether a given year in Switzerland. Contains code and test code, has p