摩斯密碼(Morse code) C#實現
摩爾斯電碼（又譯為摩斯密碼，Morse code）是一種時通時斷的信號代碼，通過不同的排列順序來表達不同的英文字母、數字和標點符號。它由美國人艾爾菲德·維爾于1837年發明。 摩爾斯電碼是一種早期的數字化通信形式，但是它不同于現代只使用零和一兩種狀態的二進制代碼，它的代碼包括五種： 點、劃、點和劃之間的停頓、每個字符間短的停頓（在點和劃之間）、每個詞之間中等的停頓以及句子之間長的停頓。
注意只可以使用英文/數字等ASCII編碼127界限符中的內容并
不支持Unicode不過你可以自己修改一部分用于支持Unicode
示例代碼：
public static class MorseCode // 摩爾斯電碼(星際穿越)
{
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;
}
}
使用代碼:
string encry = MorseCode.Enc("China"); // 把China換成摩爾斯電碼
string decry = MorseCode.Dec(encry); //把encry換成明文形式
本文由用戶 jopen 自行上傳分享，僅供網友學習交流。所有權歸原作者，若您的權利被侵害，請聯系管理員。
轉載本站原創文章，請注明出處，并保留原始鏈接、圖片水印。
本站是一個以用戶分享為主的開源技術平臺，歡迎各類分享！