FileInfo fi1 = new FileInfo("data\\公汽线路信息.txt"); FileInfo fi2 = new FileInfo("data\\地铁线路信息.txt"); FileInfo fi3 = new FileInfo("data\\地铁T1线换乘公汽信息.txt"); FileInfo fi4 = new FileInfo("data\\地铁T2 线换乘公汽信息.txt"); if (!fi1.Exists) { throw new Exception("《公
IEEE Standard for Ethernet Amendment 3: Physical Layer Specifications and Management Parameters for 40 Gb/s and 100 Gb/s Operation over Fiber Optic Cables
