c# - 从字符串转换为字节

Question

我有一个字符串，它是 40FA。我想对其执行异或运算并返回一个字节，在这种情况下为 0xBA 。但是，我只能在字符串中获取 BA。当我将 BA 转换为字节时，我得到 186。

string tmp = "40FA";
int uid_1 = Convert.ToInt32(tmp.Substring(0, 2), 16);
int uid_2 = Convert.ToInt32(tmp.Substring(2, 2), 16);

int test = uid_1 ^ uid_2 ;
string final = test.ToString("X");
byte byteresult = Byte.Parse(final , NumberStyles.HexNumber);

Answer 1

尝试:

byte[] toBytes = Encoding.ASCII.GetBytes(somestring);

and for bytes to string

string something = Encoding.ASCII.GetString(toBytes);