使用嵌套属性动态生成LINQ select

// 假设有一个包含嵌套属性的数据源
List<Person> people = new List<Person>
{
    new Person { Name = "Alice", Age = 25, Address = new Address { City = "New York", Country = "USA" } },
    new Person { Name = "Bob", Age = 30, Address = new Address { City = "London", Country = "UK" } },
    new Person { Name = "Charlie", Age = 35, Address = new Address { City = "Paris", Country = "France" } }
};

// 定义一个动态属性选择器
Func<Person, dynamic> propertySelector = p => new
{
    p.Name,
    p.Address.City
};

// 使用嵌套属性动态生成select
var result = people.Select(propertySelector);

// 输出结果
foreach (var item in result)
{
    Console.WriteLine($"Name: {item.Name}, City: {item.City}");
}