摩尔斯电码（又译为摩斯密码，Morse code）是一种时通时断的信号代码，通过不同的排列顺序来表达不同的英文字母、数字和标点符号。它由美国人艾尔菲德·维尔于1837年发明。 摩尔斯电码是一种早期的数字化通信形式，但是它不同于现代只使用零和一两种状态的二进制代码，它的代码包括五种： 点、划、点和划之间的停顿、每个字符间短的停顿（在点和划之间）、每个词之间中等的停顿以及句子之间长的停顿。
注意只可以使用英文/数字等ASCII编码127界限符中的内容并
不支持Unicode不过你可以自己修改一部分用于支持Unicode
示例代码：
public static class MorseCode // 摩尔斯电码(星际穿越)
{
private static volatile string[,] CodeTable =
{
{"A",".-"},
{"B","-..."},
{"C","-.-."},
{"D","-.."},
{"E","."},
{"E","..-.."},
{"F","..-."},
{"G","--."},
{"H","...."},
{"I",".."},
{"J",".---"},
{"K","-.-"},
{"L",".-.."},
{"M","--"},
{"N","-."},
{"O","---"},
{"P",".--."},
{"Q","--.-"},
{"R",".-."},
{"S","..."},
{"T","-"},
{"U","..-"},
{"V","...-"},
{"W",".--"},
{"X","-..-"},
{"Y","-.--"},
{"Z","--.."},
{"0","-----"},
{"1",".----"},
{"2","..---"},
{"3","...--"},
{"4","....-"},
{"5","....."},
{"6","-...."},
{"7","--..."},
{"8","---.."},
{"9","----."},
{".",".-.-.-"},
{",","--..--"},
{":","---..."},
{"?","..--.."},
{"\'",".----."},
{"-","-....-"},
{"/","-..-."},
{"(","-.--."},
{")","-.--.-"},
{"\"",".-..-."},
{"=","-...-"},
{"+",".-.-."},
{"*","-..-"},
{"@",".--.-."},
{"{UNDERSTOOD}","...-."},
{"{ERROR}","........"},
{"{INVITATION TO TRANSMIT}","-.-"},
{"{WAIT}",".-..."},
{"{END OF WORK}","...-.-"},
{"{STARTING SIGNAL}","-.-.-"},
{" ","\u2423"}
};
public static string Enc(string str)
{
int i;
string ret = string.Empty;
if (str != null && (str = str.ToUpper()).Length > 0)
foreach (char asc in str)
if ((i = Find(asc.ToString(), 0)) > -1)
ret += " " + CodeTable[i, 1];
return ret;
}
public static string Dec(string str)
{
int i;
string[] splits;
string ret = string.Empty;
if (str != null && (splits = str.Split(' ')).Length > 0)
{
foreach (string split in splits)
if ((i = Find(split, 1)) > -1)
ret += CodeTable[i, 0];
return ret;
}
return "{#}";
}
private static int Find(string str, int cols)
{
int i = 0, len = CodeTable.Length / 2; // len / rank
while (i < len)
{
if (CodeTable[i, cols] == str)
return i;
i++;
};
return -1;
}
}使用代码:
string encry = MorseCode.Enc("China"); // 把China换成摩尔斯电码
string decry = MorseCode.Dec(encry); //把encry换成明文形式
