如何将分拣机与IEnumerable连锁,每个分拣机都遵守前一个分拣机的订单



基本上,我有一个小程序,我想在其中对对象列表执行一系列排序。每个排序都应该对对象的不同属性进行操作,并遵循上一个排序产生的顺序

class Program
{
    static void Main(string[] args)
    {
        List<Person> people = new List<Person>();
        people.Add(new Person { Name = "John",   Age = 43 });
        people.Add(new Person { Name = "Ringo",  Age = 73 });
        people.Add(new Person { Name = "John",   Age = 32 });
        people.Add(new Person { Name = "Paul",   Age = 38 });
        people.Add(new Person { Name = "George", Age = 16 });
        people.Add(new Person { Name = "John",   Age = 80 });
        people.Add(new Person { Name = "Ringo",  Age = 22 });
        people.Add(new Person { Name = "Paul",   Age = 64 });
        people.Add(new Person { Name = "George", Age = 51 });
        people.Add(new Person { Name = "George", Age = 27 });
        people.Add(new Person { Name = "Ringo",  Age = 5 });
        people.Add(new Person { Name = "Paul",   Age = 43 });
        Print(Sort(people));
    }
    static IEnumerable<Person> Sort(IEnumerable<Person> people)
    {
        //order by name first, then order by age
        return people.OrderBy(p => p.Name).OrderBy(p => p.Age);
    }
    static void Print(IEnumerable<Person> people)
    {
        foreach (Person p in people)
            Console.WriteLine("{0} {1}", p.Name, p.Age);
    }
    class Person
    {
        public string Name {get; set;}
        public int Age { get; set; }
    }
}

这会产生以下输出:

Ringo 5乔治16林戈22乔治27约翰32Paul 38约翰43Paul 43乔治51Paul 64Ringo 73John 80

但我希望它能产生这个输出:

乔治16乔治27乔治51约翰32约翰43约翰80Paul 38Paul 43Paul 64Ringo 5林戈22Ringo 73

换句话说,我希望它按Name排序,然后在每个Name"组"内按Age执行本地化排序。显然,到目前为止,我使用的Sort()方法并没有做到这一点,它只是执行两个链式的OrderBy

使用IEnumerable可以做到这一点的最佳方法是什么?理想情况下,我希望该解决方案能够扩展和支持我想要的任意多个链式排序,每个排序都会产生一组"组",下一个排序器必须将其排序本地化到这些"组"。

尝试使用它应该在不破坏第一个订单的情况下重新排序

http://msdn.microsoft.com/en-us/library/bb534743.aspx

return people.OrderBy(p => p.Name).ThenBy(p => p.Age);

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