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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,Morsecode)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:csharp 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

标签:c#

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