1.请问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 = 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);
}
字符串转16进制字节数组//字符串转16进制字节数组/
privatestaticbyte[] strToToHexByte(stringhexString){
hexString=hexString.Replace("","");if((hexString.Length%2)!=0)
hexString+="";byte[] returnBytes=newbyte[hexString.Length/2];for(inti=0; i
returnBytes[i]=Convert.ToByte(hexString.Substring(i*2,2),16);returnreturnBytes;
}
字节数组转16进制字符串//字节数组转16进制字符串/
publicstaticstringbyteToHexStr(byte[] bytes){stringreturnStr="";if(bytes!=null){for(inti=0; i
returnStr+=bytes[i].ToString("X2");
}}returnreturnStr;
}
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///
publicstaticstringToHex(strings,stringcharset,boolfenge){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);stringstr="";for(inti=0; i
str+=string.Format("{0:X}", bytes[i]);if(fenge&&(i!=bytes.Length-1)){
str+=string.Format("{0}",",");
}}returnstr.ToLower();
}
16进制转换成汉字//从16进制转换成汉字/编码,如"utf-8","gb2312"///
publicstaticstringUnHex(stringhex,stringcharset){if(hex==null)thrownewArgumentNullException("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=newbyte[hex.Length/2];for(inti=0; i
System.Globalization.NumberStyles.HexNumber);
}catch{//Rethrow an exception with custom message.thrownewArgumentException("hex is not a valid hex number!","hex");
}}System.Text.Encoding chs=System.Text.Encoding.GetEncoding(charset);returnchs.GetString(bytes);
}
//上述文章为转载!
