C#控制台输入密码星号显示

在Program类中的Main方法里：

public class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine("是否要结束程序，取消请输入'No', 确认请输入密码：");

        string passwordInput = null;
        bool readPassword = true;

        while (readPassword)
        {
            while (true)
            {
                #region 控制台输入密码星号显示

                ConsoleKeyInfo ck = Console.ReadKey(true);

                //判断用户是否按下的Enter键
                if (ck.Key != ConsoleKey.Enter)
                {
                    if (ck.Key != ConsoleKey.Backspace)
                    {
                        //将用户输入的字符存入字符串中
                        passwordInput += ck.KeyChar.ToString();
                        //将用户输入的字符替换为*
                        Console.Write("*");
                    }
                    else
                    {
                        //删除错误的字符
                        Console.Write(" ");
                    }
                }
                else
                {
                    Console.WriteLine();
                    break;
                }

                #endregion
            }

            if (passwordInput == "123456")
            {
                readPassword = false;
                Console.WriteLine("密码正确");
            }
            else
            {
                Console.WriteLine("密码有误，请重新输入");
                passwordInput = null;
                readPassword = true;
            }
        }
    }
}

参考：C#_控制台输入密码星号显示