public class StringToHex
{
//1.如何将十进制数的字符串转化成十六进制数的字符串
private void Write()
{
//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 = 0; i < b.Length; i++)//逐字节变为16进制字符，以%隔开
{
result += "%" + Convert.ToString(b[i], 16);
}
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 = 0; i < chars.Length; i++)
{
b[i] = Convert.ToByte(chars[i], 16);
}
//按照指定编码将字节数组变为字符串
return encode.GetString(b);
}
/// <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;
}
/// <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;
}
/// <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();
}
///<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);
}
/// <summary>
/// 将int数值转换为占四个字节的byte数组，本方法适用于(低位在前，高位在后)的顺序。 和bytesToInt（）配套使用
/// </summary>
/// <param name="value">要转换的int值</param>
/// <returns>byte数组</returns>
public static byte[] intToBytes(int value)
{
byte[] src = new byte[4];
src[3] = (byte)((value >> 24) & 0xFF);
src[2] = (byte)((value >> 16) & 0xFF);
src[1] = (byte)((value >> 8) & 0xFF);
src[0] = (byte)(value & 0xFF);
return src;
}
/// <summary>
/// 将int数值转换为占四个字节的byte数组，本方法适用于(高位在前，低位在后)的顺序。 和bytesToInt2（）配套使用
/// </summary>
/// <param name="value">要转换的int值</param>
/// <returns>byte数组</returns>
public static byte[] intToBytes2(int value)
{
byte[] src = new byte[4];
src[0] = (byte)((value >> 24) & 0xFF);
src[1] = (byte)((value >> 16) & 0xFF);
src[2] = (byte)((value >> 8) & 0xFF);
src[3] = (byte)(value & 0xFF);
return src;
}
/// <summary>
/// byte数组中取int数值，本方法适用于(低位在前，高位在后)的顺序，和和intToBytes（）配套使用
/// </summary>
/// <param name="src">byte数组</param>
/// <param name="offset">从数组的第offset位开始</param>
/// <returns>int数值</returns>
public static int bytesToInt(byte[] src, int offset)
{
int value;
value = (int)((src[offset] & 0xFF)
| ((src[offset + 1] & 0xFF) << 8)
| ((src[offset + 2] & 0xFF) << 16)
| ((src[offset + 3] & 0xFF) << 24));
return value;
}
/// <summary>
/// byte数组中取int数值，本方法适用于(低位在后，高位在前)的顺序。和intToBytes2（）配套使用
/// </summary>
/// <param name="src"></param>
/// <param name="offset"></param>
/// <returns></returns>
public static int bytesToInt2(byte[] src, int offset)
{
int value;
value = (int)(((src[offset] & 0xFF) << 24)
| ((src[offset + 1] & 0xFF) << 16)
| ((src[offset + 2] & 0xFF) << 8)
| (src[offset + 3] & 0xFF));
return value;
}
/// <summary>
/// 将2个byte数转换为short,即16位有符合的数
/// </summary>
/// <param name="low">低位</param>
/// <param name="high">高为</param>
/// <returns>结果</returns>
public static short bytesToInt16(byte high, byte low)
{
short value = 0;
if ((high & 0x80) > 0)
{
value = (short)((-1) * ((high & 0x7F) * 0x100 + low));
}
else
{
value = (short)(high * 0x100 + low);
}
return value;
}
/// <summary>
/// 将2个byte数转换为short,即16位有符合的数
/// </summary>
/// <param name="low">低位</param>
/// <param name="high">高为</param>
/// <returns>结果</returns>
public static double bytesToInt16(byte high, byte low, byte pointBit)
{
return bytesToInt16(high, low) / Math.Pow(10, pointBit);
}
/// <summary>
/// 将2个byte数转换为ushort,即16位无符合的数
/// </summary>
/// <param name="low">低位</param>
/// <param name="high">高为</param>
/// <returns>结果</returns>
public static double bytesToDouble(byte high, byte low, byte pointBit)
{
double value = 0;
value = Math.Round((double)high * 0x100 + low, pointBit) / Math.Pow(10, pointBit);
return value;
}
/// <summary>
/// 将2个byte数转换为一定位数的string字符串
/// </summary>
/// <param name="high">高字节</param>
/// <param name="low">低字节</param>
/// <param name="pointBit">小数点位数</param>
/// <returns></returns>
public static string bytesToDoubleString(byte high, byte low, byte pointBit)
{
string str = "";
int iTemp = (int)Math.Pow(10, pointBit);
int iTempA = (high * 0x100 + low) / iTemp;
int iTempB = (high * 0x100 + low) % iTemp;
str = iTempA.ToString() + "." + iTempB.ToString().PadLeft(pointBit, '0'); ;
return str;
}
/// <summary>
/// 将int数转换为一定位数的字符串
/// </summary>
/// <param name="uTempValue1">带转换的数</param>
/// <param name="p">小数点数</param>
/// <returns></returns>
public static string IntToDoubleString(int value1, byte pointBit)
{
string str = "";
int iTemp = (int)Math.Pow(10, pointBit);
int iTempA = value1 / iTemp;
int iTempB = value1 % iTemp;
str = iTempA.ToString() + "." + iTempB.ToString().PadLeft(pointBit, '0'); ;
return str;
}
/// <summary>
/// 将Uint的数转换为Double类型的数
/// </summary>
/// <param name="intValue">UInt类型的数据</param>
/// <param name="pointBit">小数位数</param>
/// <returns></returns>
public static double IntToDouble(UInt32 intValue, byte pointBit)
{
double value = 0;
value = intValue / Math.Pow(10, pointBit);
return value;
}
public static string HexString2BinString(string hexString)
{
string result = string.Empty;
foreach (char c in hexString)
{
int v = Convert.ToInt32(c.ToString(), 16);
int v2 = int.Parse(Convert.ToString(v, 2));
// 去掉格式串中的空格，即可去掉每个4位二进制数之间的空格，
result += string.Format("{0:d4}", v2);
}
return result;
}
public static List<string> HexString2BinStringLis(string hexString)
{
string result = string.Empty;
List<string> vs = new List<string>() { };
foreach (char c in hexString)
{
int v = Convert.ToInt32(c.ToString(), 16);
int v2 = int.Parse(Convert.ToString(v, 2));
// 去掉格式串中的空格，即可去掉每个4位二进制数之间的空格，
result += string.Format("{0:d4}", v2);
vs.Add(string.Format("{0:d4}", v2));
}
return vs;
}
}
