在C#中将数组添加到字典中

本文关键字：字典 添加 数组 | 更新日期: 2023-09-27 18:26:35

我试着阅读了关于这个主题的其他帖子，但我不太明白。

我在C#中有一个列表，我想用所有相同的键把它放在字典里。列表就是这个

string[] IN ={"Against","Like","Upon","Through","Of","With","Upon","On","Into","From","by","that","In","About","For"
    ,"Along","Before","Beneath","At","Across","beside","After","Though","Among","Toward","If"};

我想创建并填充一个字典，关键字为"IN"（数组的名称），然后在字典中包含数组的每个字符串。

这是我为创建词典而写的（我不确定它是否正确）：

Dictionary<string, List<string>> wordDictionary = new Dictionary<string, List<string>> ()

但是我不知道如何填充字典。

任何帮助都将不胜感激，因为这是我第一次尝试使用字典，而且我是C#的新手

在C#中将数组添加到字典中

数组是string[]，而不是List<string>，所以只需执行以下操作：

Dictionary<string, string[]> wordDictionary = new Dictionary<string, string[]>();

现在，您可以像往常一样添加数组。

wordDictionary.Add("IN", IN);

或者：

wordDictionary.Add("IN", new string[] {"Against","Like","Upon","Through","Of","With","Upon","On","Into","From","by","that","In","About","For","Along","Before","Beneath","At","Across","beside","After","Though","Among","Toward","If"});

Dictionary.Add("IN", new List<string>(IN));

如果你想保留字典的当前签名。

如果您将其更改为Dictionary<string, string[]>，则您可以：

Dictionary.Add("IN",IN);

您当前有一个字符串数组，而不是列表，所以它应该是：

Dictionary<string, string[]> wordDictionary  = new Dictionary<string,string[]> ()

然后你可以添加以下项目：

wordDictionary.Add("IN" , IN);

您真的需要将数组转换为字符串吗？你可以很好地使用字符串[]代替字典中的列表：

var wordDictionary = new Dictionary<string, string[]>();
wordDictionary.Add("IN", IN);

但是，如果您真的想将字符串数组转换为List:

var wordDictionary = new Dictionary<string, List<string>>();
wordDictionary.Add("IN", IN.ToList());

将数组（不是列表）添加到字典的另一种方法是使用集合初始值设定项：

var wordDictionary = new Dictionary<string, string[]> { "IN", IN };

这与以正常方式创建字典然后调用Add("IN", IN)完全相同。

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