C#|C#串口通讯中 16进制与字符串、字节数组之间的转换

1.c#中如何将十进制数的字符串转化成十六进制数的字符串

//十进制转二进制 Console.WriteLine("十进制166的二进制表示: "+Convert.ToString(166, 2)); //十进制转八进制 Console.WriteLine("十进制166的八进制表示: "+Convert.ToString(166, 8)); //十进制转十六进制 Console.WriteLine("十进制166的十六进制表示: "+Convert.ToString(166, 16)); //二进制转十进制 Console.WriteLine("二进制 111101 的十进制表示: "+Convert.ToInt32("111101", 2)); //八进制转十进制 Console.WriteLine("八进制 44 的十进制表示: "+Convert.ToInt32("44", 8)); //十六进制转十进制 Console.WriteLine("十六进制 CC的十进制表示: "+Convert.ToInt32("CC", 16));

2.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
private string StringToHexString(string s,Encoding encode) { byte[] b = encode.GetBytes(s); //按照指定编码将string编程字节数组 string result = string.Empty; for (int i = ; i < b.Length; i++)//逐字节变为16进制字符,以%隔开 { result += "%"+Convert.ToString(b[i], ); } return result; } private string HexStringToString(string hs, Encoding encode) { //以%分割字符串,并去掉空字符 string[] chars = hs.Split(new char[]{'%'},StringSplitOptions.RemoveEmptyEntries); byte[] b = new byte[chars.Length]; //逐个字符变为16进制字节数据 for (int i = ; i < chars.Length; i++) { b[i] = Convert.ToByte(chars[i], ); } //按照指定编码将字节数组变为字符串 return encode.GetString(b); }

字符串转16进制字节数组 /// /// 字符串转16进制字节数组 /// /// 【C#|C#串口通讯中 16进制与字符串、字节数组之间的转换】 /// 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 /// /// 字节数组转16进制字符串 /// /// /// public static string byteToHexStr(byte[] bytes) { string returnStr = ""; if (bytes != null) { for (int i = ; i < bytes.Length; i++) { returnStr += bytes[i].ToString("X2"); } } return returnStr; }

从汉字转换到16进制 /// /// 从汉字转换到16进制 /// /// /// 编码,如"utf-8","gb2312" /// 是否每字符用逗号分隔 /// public static string ToHex(string s, string charset, bool fenge) { if ((s.Length % ) != ) { 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 = ; i < bytes.Length; i++) { str += string.Format("{0:X}", bytes[i]); if (fenge && (i != bytes.Length - )) { str += string.Format("{0}", ","); } } return str.ToLower(); }

16进制转换成汉字 /// /// 从16进制转换成汉字 /// /// /// 编码,如"utf-8","gb2312" /// 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); }

转自:https://www.bbsmax.com/A/ZOJPPaxaJv/
串口通讯,发送你的串口信息:https://blog.csdn.net/weixin_45023328/article/details/108128883

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