Question

好的，所以我是C＃的新手，但已经学到了一点。但我有一个问题，如何用“*”替换键入控制台的字符，或者只是完全隐藏它们？

        var pw = "eric123";
        Console.WriteLine("Password: ");
        var value = Console.ReadLine();
        if (value == pw)
        {
            Console.WriteLine("Permitted, Play online? (Y/N)?");
            var getGameOnlineStatus = Console.ReadLine();

            //Rest Of the Code is just for me :)

任何帮助将不胜感激！

Answer 1

找到它here

C＃控制台应用程序中的密码屏蔽

class PasswordExample
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Pls key in your Login ID");
            var loginid = Console.ReadLine();
            Console.WriteLine("Pls key in your Password");
            var password = ReadPassword();
            Console.Write("Your Password is:" + password);
            Console.ReadLine();
        }


     public static string ReadPassword()
        {
            string password = "";
            ConsoleKeyInfo info = Console.ReadKey(true);
            while (info.Key != ConsoleKey.Enter)
            {
                if (info.Key != ConsoleKey.Backspace)
                {
                    Console.Write("*");
                    password += info.KeyChar;
                }
                else if (info.Key == ConsoleKey.Backspace)
                {
                    if (!string.IsNullOrEmpty(password))
                    {
                        // remove one character from the list of password characters
                        password = password.Substring(0, password.Length - 1);
                        // get the location of the cursor
                        int pos = Console.CursorLeft;
                        // move the cursor to the left by one character
                        Console.SetCursorPosition(pos - 1, Console.CursorTop);
                        // replace it with space
                        Console.Write(" ");
                        // move the cursor to the left by one character again
                        Console.SetCursorPosition(pos - 1, Console.CursorTop);
                    }
                }
                info = Console.ReadKey(true);
            }
            // add a new line because user pressed enter at the end of their password
            Console.WriteLine();
            return password;
        }
    }

Answer 2

    public static string HideCharacter()
    {
        ConsoleKeyInfo key;
        string code = "";
        do
        {
            key = Console.ReadKey(true);

            if (Char.IsNumber(key.KeyChar))
            {
                    Console.Write("*");
            }
            code += key.KeyChar;
        } while (key.Key != ConsoleKey.Enter);

        return code;

    }

password = HideCharacter();

键入密码时隐藏/替换（C＃）

2 个答案: