使用FluentValidation将lambda表达式作为方法参数传递

using FluentValidation;

public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
}

public class PersonValidator : AbstractValidator<Person>
{
    public PersonValidator()
    {
        RuleFor(person => person.Name).NotEmpty().WithMessage("姓名不能为空");
        RuleFor(person => person.Age).InclusiveBetween(18, 60).WithMessage("年龄必须在18到60岁之间");
    }
}

public class Program
{
    public static void Main(string[] args)
    {
        var person = new Person { Name = "John", Age = 25 };

        var validator = new PersonValidator();
        var result = validator.Validate(person);

        if (result.IsValid)
        {
            Console.WriteLine("验证通过");
        }
        else
        {
            foreach (var error in result.Errors)
            {
                Console.WriteLine(error.ErrorMessage);
            }
        }
    }
}