1 Round(Decimal) 2 Round(Double) 3 Round(Decimal, Int32) 4 Round(Decimal, MidpointRounding) 5 Round(Double, Int32) 6 Round(Double, MidpointRounding) 7 Round(Decimal, Int32, MidpointRounding) 8 Round(Double, Int32, MidpointRounding)
原文：http://www.cnblogs.com/slmdr9/p/5310917.html