C#字符常用转码

这个参考地址总结的比较全：https://blog.csdn.net/u011089530/article/details/103776198
没有亲测，做个笔记参考哦!!

1.GBK 十六进制转字符（包含汉字）

string code = "D6 B1 B2 E5 CA BD 32 30 31 39 31 32 32 37 30 30 30 32 31 0D";
string[] codeArr = code.Split(' ');
int codeLen = codeArr.Length;
byte[] codeByteArr = new byte[codeArr.Length];
if (codeLen > 0)
{
    for (int i = 0; i < codeLen; i++)
    {
        codeByteArr[i] = (byte)Convert.ToByte(codeArr[i], 16);
    }
}
             
string res = Encoding.GetEncoding("GBK").GetString(codeByteArr);//结果：直插式2019122700021\r

2.字符（汉字）转 十六进制GBK

string chinese = "汉字哦110"; 
byte[] gbk = Encoding.GetEncoding("GBK").GetBytes(chinese);
string gbkStr = ""; string byteStr = "";
foreach (byte b in gbk)
{
    //s1 += Convert.ToString(b, 16)+" ";
    gbkStr += string.Format("{0:X2}", b) + " ";
    byteStr += b + " "; 
} 
//结果： 
gbkStr :BA BA D7 D6 C5 B6 31 31 30 
byteStr :186 186 215 214 197 182 49 49 48 

3.Unicode十六进制转字符（包含汉字）

string code = "D6 B1 B2 E5 CA BD 32 30 31 39 31 32 32 37 30 30 30 32 31 0D";
string[] codeArr = code.Split(' ');
int codeLen = codeArr.Length;
byte[] codeByteArr = new byte[codeArr.Length];
if (codeLen > 0)
{
    for (int i = 0; i < codeLen; i++)
    {
        codeByteArr[i] = (byte)Convert.ToByte(codeArr[i], 16);
    }
}
             
string res = Encoding.GetEncoding("Unicode").GetString(codeByteArr);
//结果：直插式2019122700021\r  

4.字符（汉字）转 十六进制UniCode

string chinese = "汉字哦110";
byte[] uniCode = Encoding.Unicode.GetBytes(chinese);
string uniStr = ""; string uniByte = "";
foreach (byte b in uniCode)
{
    //s2 += Convert.ToString(b, 16) + " ";
    uniStr += string.Format("{0:X2}", b) + " ";
    uniByte += b + " "; 
} 
//结果： 
49 6C 57 5B E6 54 31 00 31 00 30 00 
73 108 87 91 230 84 49 0 49 0 48 0 

5.UTF-8十六进制转字符（包含汉字）

string code = "D6 B1 B2 E5 CA BD 32 30 31 39 31 32 32 37 30 30 30 32 31 0D";
string[] codeArr = code.Split(' ');
int codeLen = codeArr.Length;
byte[] codeByteArr = new byte[codeArr.Length];
if (codeLen > 0)
{
    for (int i = 0; i < codeLen; i++)
    {
        codeByteArr[i] = (byte)Convert.ToByte(codeArr[i], 16);
    }
}
             
string res = Encoding.GetEncoding("UTF-8").GetString(codeByteArr);
//结果：直插式2019122700021\r  

6.字符（汉字）转 十六进制UTF-8

string chinese = "汉字哦110";
byte[] uniCode = Encoding.UTF8.GetBytes(chinese);
string uniStr = ""; string uniByte = "";
foreach (byte b in uniCode)
{
    //s2 += Convert.ToString(b, 16) + " ";
    uniStr += string.Format("{0:X2}", b) + " ";
    uniByte += b + " "; 
} 
//结果： 
49 6C 57 5B E6 54 31 00 31 00 30 00 
73 108 87 91 230 84 49 0 49 0 48 0