字符串到数组，按第3个字/列排序 [英] String to Array, Sort by 3rd Word/Column

问题描述

我有一个包含数字，单词和换行符的字符串，我将其拆分为一个数组.

I have a string with numbers, words, and linebreaks that I split into an Array.

如果我运行Array.Sort(lines)，它将按列1 Number的方式对数组进行数字排序.

If I run Array.Sort(lines) it will sort the Array numerically by Column 1, Number.

我该如何改为按列3 Color的字母顺序对数组进行排序?

How can I instead sort the Array alphabetically by Column 3, Color?

注意:它们不是真实的列，只是将单词分隔开的空格.

Note: They are not real columns, just spaces separating the words.

我无法修改字符串来更改结果.

I cannot modify the string to change the results.

| Number     | Name       | Color      |
|------------|------------|------------|
| 1          | Mercury    | Gray       |
| 2          | Venus      | Yellow     |
| 3          | Earth      | Blue       |
| 4          | Mars       | Red        |

---

C#

示例: http://rextester.com/LSP53065

string planets = "1 Mercury Gray\n"
               + "2 Venus Yellow\n"
               + "3 Earth Blue\n"
               + "4 Mars Red\n";


// Split String into Array by LineBreak
string[] lines = planets.Split(new string[] { "\n" }, StringSplitOptions.None);


// Sort
Array.Sort(lines);


// Result
foreach(var line in lines)
{
    Console.WriteLine(line.ToString());
}

---

所需的排序数组结果

3 Earth Blue
1 Mercury Gray
4 Mars Red
2 Venus Yellow

推荐答案

尝试以下代码:

string planets = "1 Mercury Gray \n"
                    + "2 Venus Yellow \n"
                    + "3 Earth Blue \n"
                    + "4 Mars Red \n";

var lines = planets.Split("\n".ToCharArray(), StringSplitOptions.RemoveEmptyEntries)
    .OrderBy(s => s.Split(' ')[2])
    .ToArray();

foreach (var line in lines)
{
    Console.WriteLine(line);
}

谢谢@Kevin！

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