摘要：
/// <summary> /// ASCII 帮助类 /// </summary> public static class ASCIIHelper { /// <summary> /// 含中文字符串转ASCII /// </summary> /// <param name="str"></par 阅读全文
摘要：
/// <summary> /// 维吉尼亚加密与解密 /// </summary> public static class VigenereHelper { /// <summary> /// 密钥 /// </summary> private static string TableKey = @ 阅读全文