首页 > 编程 > C# > 正文

C# 16进制与字符串、字节数组之间的转换

2019-10-29 21:48:31
字体:
来源:转载
供稿:网友
在串口通讯过程中,经常要用到 16进制与字符串、字节数组之间的转换
 
 

 

复制代码代码如下:

/// <summary> 
/// 字符串转16进制字节数组 
/// </summary> 
/// <param name="hexString"></param> 
/// <returns></returns> 
private static byte[] strToToHexByte(string hexString) 

hexString = hexString.Replace(" ", ""); 
if ((hexString.Length % 2) != 0) 
hexString += " "; 
byte[] returnBytes = new byte[hexString.Length / 2]; 
for (int i = 0; i < returnBytes.Length; i++) 
returnBytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16); 
return returnBytes; 

字节数组转16进制字符串 
/// <summary> 
/// 字节数组转16进制字符串 
/// </summary> 
/// <param name="bytes"></param> 
/// <returns></returns> 
public static string byteToHexStr(byte[] bytes) 

string returnStr = ""; 
if (bytes != null) 

for (int i = 0; i < bytes.Length; i++) 

returnStr += bytes[i].ToString("X2"); 


return returnStr; 

从汉字转换到16进制 
/// <summary> 
/// 从汉字转换到16进制 
/// </summary> 
/// <param name="s"></param> 
/// <param name="charset">编码,如"utf-8","gb2312"</param> 
/// <param name="fenge">是否每字符用逗号分隔</param> 
/// <returns></returns> 
public static string ToHex(string s, string charset, bool fenge) 

if ((s.Length % 2) != 0) 

s += " ";//空格 
//throw new ArgumentException("s is not valid chinese string!"); 

System.Text.Encoding chs = System.Text.Encoding.GetEncoding(charset); 
byte[] bytes = chs.GetBytes(s); 
string str = ""; 
for (int i = 0; i < bytes.Length; i++) 

str += string.Format("{0:X}", bytes[i]); 
if (fenge && (i != bytes.Length - 1)) 

str += string.Format("{0}", ","); 


return str.ToLower(); 

16进制转换成汉字 
///<summary> 
/// 从16进制转换成汉字 
/// </summary> 
/// <param name="hex"></param> 
/// <param name="charset">编码,如"utf-8","gb2312"</param> 
/// <returns></returns> 
public static string UnHex(string hex, string charset) 

if (hex == null) 
throw new ArgumentNullException("hex"); 
hex = hex.Replace(",", ""); 
hex = hex.Replace("/n", ""); 
hex = hex.Replace("//", ""); 
hex = hex.Replace(" ", ""); 
if (hex.Length % 2 != 0) 

hex += "20";//空格 

// 需要将 hex 转换成 byte 数组。 
byte[] bytes = new byte[hex.Length / 2]; 
for (int i = 0; i < bytes.Length; i++) 

try 

// 每两个字符是一个 byte。 
bytes[i] = byte.Parse(hex.Substring(i * 2, 2), 
System.Globalization.NumberStyles.HexNumber); 

catch 

// Rethrow an exception with custom message. 
throw new ArgumentException("hex is not a valid hex number!", "hex"); 


System.Text.Encoding chs = System.Text.Encoding.GetEncoding(charset); 
return chs.GetString(bytes); 

发表评论 共有条评论
用户名: 密码:
验证码: 匿名发表