要么：

  public static string ByteArrayToString（byte [] ba）
 {
 StringBuilder hex = new StringBuilder（ba.Length * 2 ）; 
 foreach（ba中的字节b）
 hex.AppendFormat（{0：x2}，b）; 
 return hex.ToString（）; 

 

或者：

{
返回BitConverter.ToString（ba）.Replace（ - ，）;
}

还有更多的变体，比如 here 。

反向转换将如下所示：

  public static byte [] StringToByteArray（String十六进制）
 {
 int NumberChars = hex.Length; 
 byte [] bytes = new byte [NumberChars / 2]; 
 for（int i = 0; i< NumberChars; i + = 2）
 bytes [i / 2] = Convert.ToByte（hex.Substring（i，2），16）; 
返回字节; 

 

使用 Substring 是与 Convert.ToByte 组合的***选择。有关更多信息，请参阅此答案。如果您需要更好的性能，您必须先避免 Convert.ToByte ，然后才能删除 SubString 。

How can you convert a byte array to a hexadecimal string, and vice versa?

Either:

public static string ByteArrayToString(byte[] ba)
{
  StringBuilder hex = new StringBuilder(ba.Length * 2);
  foreach (byte b in ba)
    hex.AppendFormat("{0:x2}", b);
  return hex.ToString();
}

or:

public static string ByteArrayToString(byte[] ba)
{
  return BitConverter.ToString(ba).Replace("-","");
}

There are even more variants of doing it, for example here.

The reverse conversion would go like this:

public static byte[] StringToByteArray(String hex)
{
  int NumberChars = hex.Length;
  byte[] bytes = new byte[NumberChars / 2];
  for (int i = 0; i < NumberChars; i += 2)
    bytes[i / 2] = Convert.ToByte(hex.Substring(i, 2), 16);
  return bytes;
}

Using Substring is the best option in combination with Convert.ToByte. See this answer for more information. If you need better performance, you must avoid Convert.ToByte before you can drop SubString.