C# 预处理指令

c#可以用 #if, #elif, #else和#endif等预处理指令注释代码

例:

#if JYS_ZYDT
            Console.Title += "甘肃张揶大通管理端接口 v1.0.20170817";
#elif JYS_TJLH
            Console.Title += "天津联合";
#elif JYS_QDXHA
            Console.Title += "青岛西海岸";
#elif JYS_DBDZ
            Console.Title += "东北大宗";
#elif JYS_HNAF
            Console.Title += "湖南阿凡管理端接口 v1.0.20170321";
#elif JYS_NMDZ
            Console.Title += "内蒙大宗";
#elif JYS_JDHQ
            Console.Title += "金殿环球管理端接口 v1.0.20170817";
#elif JYS_JDHJW
            Console.Title += "金殿黄金屋管理端接口 v1.0.20170512";
#elif JYS_BFXM
            Console.Title += "北方畜牧管理端接口 v1.0.20170328";
#elif JYS_XMLA
            Console.Title += "厦门两岸管理端接口 v1.0.20170817";
#elif JYS_DLZH
            Console.Title += "大连中合管理端接口 v1.0.20170328";
#elif JYS_HGJ
            Console.Title += "哈国际管理端接口 v1.0.20170405";
#elif JYS_QYH
            Console.Title += "钱运商城管理端接口 v1.0.20170601";
#elif JYS_ZJWL
            Console.Title += "中金物联管理端接口 v1.0.20170614";
#elif JYS_ZSHQ
            Console.Title += "中晟环球管理端接口 v1.0.20170626";
#elif JYS_XLS
            Console.Title += "新零售管理端接口 v1.0.20170816";
#endif