从排序另一个阵列为了一个阵列？ [英] Sort One Array from Another array order?

问题描述

var listOne = new string[] { "dog", "cat", "car", "apple"};
var listTwo = new string[] { "car", "apple"};

我需要的是通过项目在listTwo的顺序（如present）命令那么listOne。因此，新的名单将在这个秩序;
   汽车，苹果，狗，猫

What I need is to order listOne by the order of items in listTwo (if present). So the new list would be in this order; "car", "apple", "dog", "cat"

我想做到这一点的LINQ，并尝试这一点;

I would like to do this in LINQ and have tried this;

var newList = from l1 in listOne
              join l2 in listTwo on l1 equals l2 in temp
              from nl temp.DefaultIfEmpty()
              select nl;

但它返回null左右，显然我的LINQ福较弱。任何的建议是AP preciated。

But it returns null so evidently my Linq-Fu is weak. Any advise is appreciated.

推荐答案

您需要的所有从listTwo是在那么listOne后跟那么listOne余下项目的项目？

You need all the items from listTwo that are in listOne followed by the remaining items from listOne?

var results = listTwo.Intersect(listOne).Union(listOne);
foreach (string r in results)
{
    Console.WriteLine(r);
}

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