C#实现获取yaml文件中所有的releaseID和buildSystem的value值

在C#中，要从YAML文件中提取所有`releaseID`和`buildSystem`的值，你可以使用一些第三方库如`YamlDotNet`或者`.NET Core`自带的`System.Text.Json`处理YAML文件。首先，需要安装`YamlDotNet`库：

Install-Package YamlDotNet

然后，你可以编写这样的代码片段来读取和解析YAML文件：

using System;
using System.IO;
using YamlDotNet.Reading;

public class YamlParser
{
    public static void ExtractReleaseAndBuildInfo(string yamlFilePath)
    {
        if (!File.Exists(yamlFilePath))
        {
            throw new FileNotFoundException($"YAML文件不存在: {yamlFilePath}");
        }

        var stream = File.OpenText(yamlFilePath);
        using (var reader = new YamlStream())
        {
            try
            {
                reader.Load(stream);

                foreach (var document in reader.Documents)
                {
                    foreach (var node in document.RootNode.Nodes)
                    {
                        if (node is MappingNode mapping && mapping.Children.ContainsKey("releaseID") && mapping.Children.ContainsKey("buildSystem"))
                        {
                            var releaseId = mapping Children["releaseID"].Value.ToString();
                            var buildSystem = mapping.Children["buildSystem"].Value.ToString();

                            Console.WriteLine($"releaseID: {releaseId}, buildSystem: {buildSystem}");
                        }
                    }
                }
            }
            catch (YamlException ex)
            {
                Console.WriteLine($"解析YAML文件时出错: {ex.Message}");
            }
        }
    }
}

// 调用函数
string yamlFilePath = "path_to_your_yaml_file.yaml";
YamlParser.ExtractReleaseAndBuildInfo(yamlFilePath);