如何实现用于在键入用户密码时隐藏用户密码的代码。 [英] How do I implement my code used to hide the users password while they are typing it.
本文介绍了如何实现用于在键入用户密码时隐藏用户密码的代码。的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
使用System;
使用System.Collections.Generic;
使用System.Linq;
使用System.Text;
使用System.Threading.Tasks;
命名空间ConsoleApplication5
{
类程序
{
公共静态字符串ReadPassword（）
{
string password = ;
ConsoleKeyInfo info = Console.ReadKey（true）;
while（info.Key！= ConsoleKey.Enter）
{
if（info.Key！= ConsoleKey.Backspace）
{
Console.Write（* ）;
密码+ = info.KeyChar;
}
else if（info.Key == ConsoleKey.Backspace）
{
if（！string.IsNullOrEmpty（password））
{
/ /从密码字符列表中删除一个字符
password = password.Substring（0，password.Length - 1）;
//获取游标的位置
int pos = Console.CursorLeft;
//将光标向左移动一个字符
Console.SetCursorPosition（pos - 1，Console.CursorTop）;
//用空格替换
Console.Write（）;
//再次将光标向左移动一个字符
Console.SetCursorPosition（pos - 1，Console.CursorTop）;
}
}
info = Console.ReadKey（true）;
}
//添加一个新行，因为用户在密码结束时按Enter键
Console.WriteLine（）;
返回密码;
}
static void Main（string [] args）
{
Random numberMaker = new Random（）;
int number = numberMaker.Next（1,100）;
Console.WriteLine（请在下面输入你的名字。）;
Console.Write（Name：）;
string name = Console.ReadLine（）;
if（name ==）
{
Console.WriteLine（\ nERROR）;
name =ERROR;
}
Console.WriteLine（\我想的是1到100之间的数字。）;
int guess = 0;
do
{
Console.Write（猜猜：）;
guess = int.Parse（Console.ReadLine（））;
if（number> guess）
{
Console.WriteLine（\ nToo low）;
}
else if（number< guess）
{
Console.WriteLine（\ nToo high）;
}
else if（name ==Logan）
{
string PASSWORD =998783;
Console.Write（\ nPassword：）;
string password = Console.ReadLine（）;
if（password == PASSWORD）
{
Console.WriteLine（\\\
Access Granted。）;
Console.WriteLine（\\\
Welcome {0} .\ n，name）;
int num1;
int num2;
字符串操作数;
浮动答案;
Console.Write（\\\
Please输入第一个整数：）;
num1 = Convert.ToInt32（Console.ReadLine（））;
Console.Write（请输入一个操作数（+， - ，/，*）：）;
operand = Console.ReadLine（）;
Console.Write（请输入第二个整数：\ n）;
num2 = Convert.ToInt32（Console.ReadLine（））;
开关（操作数）
{
case - ：
answer = num1 - NUM2;
休息;
case+：
answer = num1 + num2;
休息;
case/：
answer = num1 / num2;
休息;
case*：
answer = num1 * num2;
休息;
默认值：
answer = 0;
休息;
}
Console.WriteLine（num1.ToString（）++操作数++ num2.ToString（）+ =+ answer.ToString（））;
}
else
{
Console.WriteLine（\ nERROR）;
休息;
}
}
其他
{
Console.WriteLine（\ nYou win！）;
}
} while（number！= guess）;
Console.ReadLine（）;
Console.WriteLine（再见，{0}。，名称）;
Console.ReadLine（）;
}
}
}
解决方案
什么......？
您从此处获得了ReadPassword方法： http://rajeshbailwal.blogspot .hu / 2012/03 / password-in-c-console-application.html [ ^ ]。你根本就不使用它。而不是
string password = Console.ReadLine（）;
使用
string password = ReadPassword（）;
但pelase尝试至少做你的功课....
问Google，例如密码屏蔽控制台应用程序 [ ^ ]。
干杯
Andi
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ConsoleApplication5
{
class Program
{
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;
}
static void Main(string[] args)
{
Random numberMaker = new Random();
int number = numberMaker.Next(1, 100);
Console.WriteLine("Please input your name below.");
Console.Write("Name: ");
string name = Console.ReadLine();
if (name == "")
{
Console.WriteLine("\nERROR");
name = "ERROR";
}
Console.WriteLine("\nI'm thinking of a number between 1 and 100.");
int guess = 0;
do
{
Console.Write("Take a guess: ");
guess = int.Parse(Console.ReadLine());
if (number > guess)
{
Console.WriteLine("\nToo low");
}
else if (number < guess)
{
Console.WriteLine("\nToo high");
}
else if (name == "Logan")
{
string PASSWORD = "998783";
Console.Write("\nPassword: ");
string password = Console.ReadLine();
if (password == PASSWORD)
{
Console.WriteLine("\nAccess Granted.");
Console.WriteLine("\nWelcome {0}.\n", name);
int num1;
int num2;
string operand;
float answer;
Console.Write("\nPlease enter the first integer: ");
num1 = Convert.ToInt32(Console.ReadLine());
Console.Write("Please enter an operand (+, -, /, *): ");
operand = Console.ReadLine();
Console.Write("Please enter the second integer: \n");
num2 = Convert.ToInt32(Console.ReadLine());
switch (operand)
{
case "-":
answer = num1 - num2;
break;
case "+":
answer = num1 + num2;
break;
case "/":
answer = num1 / num2;
break;
case "*":
answer = num1 * num2;
break;
default:
answer = 0;
break;
}
Console.WriteLine(num1.ToString() + " " + operand + " " + num2.ToString() + " = " + answer.ToString());
}
else
{
Console.WriteLine("\nERROR");
break;
}
}
else
{
Console.WriteLine("\nYou win!");
}
} while (number != guess);
Console.ReadLine();
Console.WriteLine("Good bye, {0}.",name);
Console.ReadLine();
}
}
} 解决方案
What the... ?
You got the ReadPassword method from here: http://rajeshbailwal.blogspot.hu/2012/03/password-in-c-console-application.html[^]. You simply don't use it. Instead of
string password = Console.ReadLine();
use
string password = ReadPassword();
But pelase try at least to do your homework....
Ask Google, e.g. Password masking console application[^].
Cheers
Andi
这篇关于如何实现用于在键入用户密码时隐藏用户密码的代码。的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
