字符串数组排序列表C# [英] Sort list of string arrays c#

问题描述

我有一个字符串数组列表，其中这些数组的格式设置为[动物，品种，名称]:

I have a list of string arrays, where the arrays are formatted as [Animal, Breed, Name]:

{ ["Dog", "Golden Retriever", "Rex"],
  ["Cat", "Tabby", "Boblawblah"],
  ["Fish", "Clown", "Nemo"],
  ["Dog", "Pug", "Daisy"],
  ["Cat", "Siemese", "Wednesday"],
  ["Fish", "Gold", "Alaska"]
}

我将如何对这个列表进行排序，以便按照动物"(Animal)和品种"(Breed)的字母顺序进行排列?即:

How would I sort this list so that it was arranged alphabetically by "Animal", and then "Breed"? i.e.:

{ ["Cat", "Siamese", "Boblawblah"],
  ["Cat", "Tabby", "Wednesday"],
  ["Dog", "Golden Retriever", "Rex"],
  ["Dog", "Pug", "Daisy"],
  ["Fish", "Clown", "Nemo"],
  ["Fish", "Gold", "Alaska"]
}

我正在尝试:

animalList.Sort((s, t) => String.Compare(s[0], t[0]));

但是，这不能正确地对第二列进行排序.除了按字母顺序对前两列进行排序外，我还应如何在第三列中添加?

But that is not sorting the second column correctly. In addition to sorting by the first two columns alphabetically, how would I then add in the third column?

推荐答案

您可以使用LINQ:

animalList = animalList
    .OrderBy(arr => arr[0])
    .ThenBy(arr  => arr[1])
    .ToList();

您的样本:

List<string[]> animalList = new List<String[]>{ 
            new []{"Dog", "Golden Retriever", "Rex"},
            new []{"Cat", "Tabby", "Boblawblah"},
            new []{"Fish", "Clown", "Nemo"},
            new []{"Dog", "Pug", "Daisy"},
            new []{"Cat", "Siemese", "Wednesday"},
            new []{"Fish", "Gold", "Alaska"}
        };

结果:

-       [0] {string[3]} string[]
        [0] "Cat"   string
        [1] "Siemese"   string
        [2] "Wednesday" string
-       [1] {string[3]} string[]
        [0] "Cat"   string
        [1] "Tabby" string
        [2] "Boblawblah"    string
-       [2] {string[3]} string[]
        [0] "Dog"   string
        [1] "Golden Retriever"  string
        [2] "Rex"   string
-       [3] {string[3]} string[]
        [0] "Dog"   string
        [1] "Pug"   string
        [2] "Daisy" string
-       [4] {string[3]} string[]
        [0] "Fish"  string
        [1] "Clown" string
        [2] "Nemo"  string
-       [5] {string[3]} string[]
        [0] "Fish"  string
        [1] "Gold"  string
        [2] "Alaska"    string

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