string str = "3A";
int result = int.Parse("3A", System.Globalization.NumberStyles.AllowHexSpecifier);
//int result = int.Parse("3A", System.Globalization.NumberStyles.HexNumber);
Console.WriteLine(result);//输出58
Console.ReadLine();
string str = "3A";
int result = int.Parse("3A", System.Globalization.NumberStyles.AllowHexSpecifier);
//int result = int.Parse("3A", System.Globalization.NumberStyles.HexNumber);
Console.WriteLine(result);//输出58
Console.ReadLine();