C# ：无效 密码[7]=“123456789”；//编号：无效 //密码验证模式 var hasLetterAndNumber=新正则表达式（@“（？=.[A-Z]）|（？=.[A-Z]））（？=.[0-9]）{8,32}”）； var hasLetterAndCharacter=new Regex（@“（（？=.*[A-Z]）|（？=.*[A-Z]））（？=.[@$%^&+=]）。{8,32}）； var hasNumberAndCharacter=new Regex（@“（？=.[0-9]）（？=.[@$%^&+=]）。{8,32}）； //验证密码 for（int i=0；i

您不需要正则表达式。尽管我发布了答案，但您确实应该看看漂亮的细分。我接受了你的最后一句话，让它更优雅，如果你同意的话<代码>^（？=[A-Za-z]*）（？=[0-9]*）（？=[@$%^&+=]*）。{8,32}$@KarolFlis是的，确实那些

*

看起来并不相关。将您的评论包括在答案中。@KarolFlis我不得不将答案更改回去，因为它没有强制执行所有规则。您是对的，谢谢您让我在regexp上刷新我的记忆：）

^                      Matches the start of the string
(?=.{8,})              Matches when there are at least 8 characters
(?=.*[a-z])            Matches when there is a lowercase letter anywhere
(?=.*[A-Z])            Matches when there is an uppercase letter anywhere
(?=.*[@#$%^&+=])       Matches when there is one of the indicated characters anywhere
.*                     Matches anything. No lookahead so this advances the "cursor"
$                      Matches the end of the string

(?=.*[A-Za-z])

(?=.*[0-9])

.{8,32}

^(?=.*[A-Za-z])(?=.*[0-9])(?=.*[@#$%^&+=]).{8,32}$

((?=.*[A-Z])|(?=.*[a-z]))(?=.*[0-9]).{8,32}

((?=.*[A-Z])|(?=.*[a-z]))(?=.*[@#$%^&+=]).{8,32}

(?=.*[0-9])(?=.*[@#$%^&+=]).{8,32}

(((?=.*[A-Z])|(?=.*[a-z]))(?=.*[0-9])).{8,32}|((?=.*[A-Z])|(?=.*[a-z]))(?=.*[@#$%^&+=]).{8,32}|(?=.*[0-9])(?=.*[@#$%^&+=]).{8,32}

using System;
using System.Text.RegularExpressions;

public class Program
{
    public static void Main()
    {
        // Passwords
        String[] passwords = new String[8];

        passwords[0] = "ABCabc123";    //  letters (uppercase or lowercase) and numbers                           : VALID
        passwords[1] = "*+uu*+aa";     //  letters (uppercase or lowercase) and special characters                : VALID
        passwords[2] = "123+*$0*";      //  numbers and special characters                                        : VALID
        passwords[3] = "ABCabc123*$#"; //  letters (uppercase or lowercase) and numbers and special characters    : VALID
        passwords[4] = "ABCDabcd";     //  letters (uppercase and lowercase)                                      : INVALID
        passwords[5] = "abcdefg";      //  letters (lowercase)                                                    : INVALID
        passwords[6] = "ABCDEFGH";     //  letters (uppercase)                                                    : INVALID
        passwords[7] = "123456789";   //  numbers                                                                 : INVALID

        // Password validation  pattern
        var Validation = new Regex(@"((?=.*[A-Z])|(?=.*[a-z]))(?=.*[0-9]).{8,32}|((?=.*[A-Z])|(?=.*[a-z]))(?=.*[@#$%^&+=]).{8,32}|(?=.*[0-9])(?=.*[@#$%^&+=]).{8,32}");

        // Validat the passwords
        for (int i = 0; i < passwords.Length; i++){
            var isValidated = Validation.IsMatch(passwords[i]);
            Console.WriteLine(isValidated);
        }
    }
}

using System;
using System.Text.RegularExpressions;

public class Program
{
    public static void Main()
    {
        // Passwords
        String[] passwords = new String[8];

        passwords[0] = "ABCabc123";    //  letters (uppercase or lowercase) and numbers                           : VALID
        passwords[1] = "*+uu*+aa";     //  letters (uppercase or lowercase) and special characters                : VALID
        passwords[2] = "123+*$0*";      //  numbers and special characters                                        : VALID
        passwords[3] = "ABCabc123*$#"; //  letters (uppercase or lowercase) and numbers and special characters    : VALID
        passwords[4] = "ABCDabcd";     //  letters (uppercase and lowercase)                                      : INVALID
        passwords[5] = "abcdefg";      //  letters (lowercase)                                                    : INVALID
        passwords[6] = "ABCDEFGH";     //  letters (uppercase)                                                    : INVALID
        passwords[7] = "123456789";   //  numbers                                                                 : INVALID

        // Password validation  pattern
        var hasLetterAndNumber = new Regex(@"((?=.*[A-Z])|(?=.*[a-z]))(?=.*[0-9]).{8,32}");
        var hasLetterAndCharacter = new Regex(@"((?=.*[A-Z])|(?=.*[a-z]))(?=.*[@#$%^&+=]).{8,32}");
        var hasNumberAndCharacter = new Regex(@"(?=.*[0-9])(?=.*[@#$%^&+=]).{8,32}");

        // Validat the passwords
        for (int i = 0; i < passwords.Length; i++){

            if((hasLetterAndNumber.IsMatch(passwords[i])) || (hasLetterAndCharacter.IsMatch(passwords[i])) || (hasNumberAndCharacter.IsMatch(passwords[i]))){
                Console.WriteLine(passwords[i]);
                Console.WriteLine("\n");
            }
        }
    }
}