Strings-creating“passwords"和“;users"(简单的字符串)

本文关键字：quot 字符串 简单 passwords Strings-creating users | 更新日期: 2023-09-27 18:15:47

我需要创建一个程序，将采取用户名和"密码"。如果匹配，程序就会告诉你，如果不匹配，你就出局了。我为一个用户写的，但我不知道如何在一个程序中创建多个用户。我的代码如下。谢谢你的帮助:)

Console.WriteLine("Enter your Name");
Console.WriteLine("Enter your Pswrd");
string name = Console.ReadLine();
string pswrd = Console.ReadLine();
string myname = "John";
string mypswrd = "123456";
if (name == myname &  pswrd == mypswrd)
{
    Console.WriteLine("You are logged in");
}
else
{
    Console.WriteLine("Incorrect name or pswrd");
}
Console.ReadLine();

Strings-creating“passwords"和“;users"(简单的字符串)

//building the user "database" each pair is <user,password>
Dictionary<string, string> users = new Dictionary<string, string>();
users.Add("John", "123456");
//Here you should add more users in the same way...
//But i would advise reading them from out side the code (SQL database for example).
Console.Writeline("Enter your Name");
string name = Console.ReadLine();
Console.WriteLine("Enter your Passward");
string password = Console.ReadLine();
if (users.ContainsKey(name) && users[name] == password)
{
    Console.WriteLine("You are logged in");
}
else
{
    Console.WriteLine("Incorrect name or password");
}
Console.ReadLine();

这应该可以工作(不包含检查输入值是否正确的检查，您应该自己添加这种安全措施:)):

        Dictionary<string, string> namesToCheck = new Dictionary<string, string>
        {
            {"John", "123456"},
            {"Harry", "someotherpassword"}
        };
        Console.WriteLine("Enter your Name");
        string name = Console.ReadLine();
        Console.WriteLine("Enter your Pswrd");
        string pswrd = Console.ReadLine();
        if (namesToCheck.ContainsKey(name) && namesToCheck[name] == pswrd)
        {
            Console.WriteLine("You are logged in");
        }
        else
        {
            Console.WriteLine("Incorrect name or pswrd");
        }
        Console.ReadLine();

为什么不用数组呢?

Console.WriteLine("Enter your Name");
Console.WriteLine("Enter your Pswrd");
string name = Console.ReadLine();
string pswrd = Console.ReadLine();
string[] names = "James,John,Jude".Split(Convert.ToChar(","));
string[] passes = "Pass1, Word2, Password3".Split(Convert.ToChar(","));
for (int i = 0; i<names.Length, i++)
{
    if (names[i] == name && passes[i] == pswrd)
    {
        Console.WriteLine("You are logged in");
    }
    else
    {
        Console.WriteLine("Incorrect name or pswrd");
    }
}

这将适用于以下名称/pswrd组合:James/Pass1, John/Word2, Jude/Password3

对于更大的列表，我建议您使用外部文本文件并在每个文件中读取行

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