c#

c#字典遍历使用的方法是什么

小亿
135
2024-01-09 23:34:33
栏目: 编程语言

在C#中,遍历字典的方法有以下几种:

  1. 使用foreach循环遍历字典中的键值对:
Dictionary<string, int> dict = new Dictionary<string, int>();

foreach (KeyValuePair<string, int> kvp in dict)
{
    string key = kvp.Key;
    int value = kvp.Value;
    Console.WriteLine("Key: {0}, Value: {1}", key, value);
}
  1. 使用foreach循环遍历字典中的键:
Dictionary<string, int> dict = new Dictionary<string, int>();

foreach (string key in dict.Keys)
{
    int value = dict[key];
    Console.WriteLine("Key: {0}, Value: {1}", key, value);
}
  1. 使用foreach循环遍历字典中的值:
Dictionary<string, int> dict = new Dictionary<string, int>();

foreach (int value in dict.Values)
{
    Console.WriteLine("Value: {0}", value);
}
  1. 使用LINQ查询表达式遍历字典中的键值对:
Dictionary<string, int> dict = new Dictionary<string, int>();

var query = from kvp in dict
            select kvp;

foreach (var kvp in query)
{
    string key = kvp.Key;
    int value = kvp.Value;
    Console.WriteLine("Key: {0}, Value: {1}", key, value);
}

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