摩斯密码(Morse code) C#实现

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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