C#控制台輸入密碼星號顯示

在Program類中的Main方法里：

public class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine("是否要結束程序，取消請輸入'No', 確認請輸入密碼：");

        string passwordInput = null;
        bool readPassword = true;

        while (readPassword)
        {
            while (true)
            {
                #region 控制台輸入密碼星號顯示

                ConsoleKeyInfo ck = Console.ReadKey(true);

                //判斷用戶是否按下的Enter鍵
                if (ck.Key != ConsoleKey.Enter)
                {
                    if (ck.Key != ConsoleKey.Backspace)
                    {
                        //將用戶輸入的字符存入字符串中
                        passwordInput += ck.KeyChar.ToString();
                        //將用戶輸入的字符替換為*
                        Console.Write("*");
                    }
                    else
                    {
                        //刪除錯誤的字符
                        Console.Write("\b \b");
                    }
                }
                else
                {
                    Console.WriteLine();
                    break;
                }

                #endregion
            }

            if (passwordInput == "123456")
            {
                readPassword = false;
                Console.WriteLine("密碼正確");
            }
            else
            {
                Console.WriteLine("密碼有誤，請重新輸入");
                passwordInput = null;
                readPassword = true;
            }
        }
    }
}

 

參考：C#_控制台輸入密碼星號顯示