c#随机生成强类型密码

可以使用C#内置的`Random`类来生成随机密码，然后使用密码强度校验器来确保密码强度。以下是一个示例代码：

using System;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Web.Security;

public static class PasswordGenerator
{
    private static readonly Random Random = new Random();

    public static string GeneratePassword(int length = 12)
    {
        const string validChars = "ABCDEFGHJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*?_-";
        var password = new char[length];

        for (var i = 0; i < length; i++)
        {
            var index = Random.Next(validChars.Length);
            password[i] = validChars[index];
        }

        var passwordString = new string(password);
        var passwordValidator = new PasswordStrengthChecker();

        var validationResult = passwordValidator.CheckPasswordStrength(passwordString);
        if (validationResult > MembershipPasswordStrength.Strong)
        {
            return passwordString;
        }

        return GeneratePassword(length);
    }
}

public class PasswordStrengthChecker
{
    public MembershipPasswordStrength CheckPasswordStrength(string password)
    {
        var score = 0;
        var hasDigit = false;
        var hasLowerCase = false;
        var hasUpperCase = false;
        var hasNonAlphanumeric = false;

        foreach (var c in password)
        {
            if (char.IsDigit(c))
            {
                hasDigit = true;
                score += 1;
            }
            else if (char.IsLower(c))
            {
                hasLowerCase = true;
                score += 1;
            }
            else if (char.IsUpper(c))
            {
                hasUpperCase = true;
                score += 1;
            }
            else
            {
                hasNonAlphanumeric = true;
                score += 2;
            }
        }

        if (!hasDigit || !hasLowerCase || !hasUpperCase || !hasNonAlphanumeric)
        {
            score = Math.Max(1, score);
        }

        if (password.Length < 8)
        {
            score = Math.Max(1, score);
        }
        else if (password.Length < 11)
        {
            score += 1;
        }
        else
        {
            score += 2;
        }

        if (score <= 1)
        {
            return MembershipPasswordStrength.Weak;
        }

        if (score <= 3)
        {
            return MembershipPasswordStrength.Medium;
        }

        if (score <= 6)
        {
            return MembershipPasswordStrength.Strong;
        }

        return MembershipPasswordStrength.VeryStrong;
    }
}

这个代码使用`Random`类生成随机数，并使用自定义的`PasswordStrengthChecker`类校验密码强度。你可以按照自己的需要修改密码长度和密码强度校验规则。