如SonarCloud所示，更好的做法是：

public class Example
{
    public static void Main()
    { 
        // Compliant: type of the current class
        Assembly assembly = typeof(Example).Assembly; 
        Console.WriteLine("Assembly name: {0}", assem.FullName);

        // Non-compliant
        Assembly assembly = Assembly.GetExecutingAssembly();
        Console.WriteLine("Assembly name: {0}", assem.FullName);
    }
}

public class AssemblyTextFileReader
{
    private readonly Assembly _assembly;

    public AssemblyTextFileReader(Assembly assembly)
    {
        _assembly = assembly ?? throw new ArgumentNullException(nameof(assembly));
    }

    public async Task<string> ReadFileAsync(string fileName)
    {
        var resourceName = _assembly.GetManifestResourceName(fileName);

        using (var stream = _assembly.GetManifestResourceStream(resourceName))
        {
            using (var reader = new StreamReader(stream))
            {
                return await reader.ReadToEndAsync();
            }
        }
    }
}

public static class AssemblyExtensions
{
    public static string GetManifestResourceName(this Assembly assembly, string fileName)
    {
        string name = assembly.GetManifestResourceNames().SingleOrDefault(n => n.EndsWith(fileName, StringComparison.InvariantCultureIgnoreCase));

        if (string.IsNullOrEmpty(name))
        {
            throw new FileNotFoundException($"Embedded file '{fileName}' could not be found in assembly '{assembly.FullName}'.", fileName);
        }

        return name;
    }
}

// To use the code above:
var reader = new AssemblyTextFileReader(assembly);

string text = await reader.ReadFileAsync(@"MyFile.txt");

答案很简单，如果直接从resources.resx添加文件，只需这样做。

string textInResourceFile = fileNameSpace.Properties.Resources.fileName;

使用这行代码，文件中的文本将直接从文件中读取并放入字符串变量中。

对于使用VB.Net的用户

Imports System.IO
Imports System.Reflection

Dim reader As StreamReader
Dim ass As Assembly = Assembly.GetExecutingAssembly()
Dim sFileName = "MyApplicationName.JavaScript.js" 
Dim reader = New StreamReader(ass.GetManifestResourceStream(sFileName))
Dim sScriptText = reader.ReadToEnd()
reader.Close()

其中MyApplicationName是应用程序的命名空间。它不是程序集名称。此名称在项目的财产（应用程序选项卡）中定义。

如果找不到正确的资源名称，可以使用GetManifestResourceNames（）函数

Dim resourceName() As String = ass.GetManifestResourceNames()

or

Dim sName As String 
    = ass.GetManifestResourceNames()
        .Single(Function(x) x.EndsWith("JavaScript.js"))

or

Dim sNameList 
    = ass.GetManifestResourceNames()
        .Where(Function(x As String) x.EndsWith(".js"))

对于所有快速想要winforms中硬编码文件文本的人；

右键单击解决方案资源管理器>资源>添加文件中的应用程序。单击它，然后在财产选项卡中将“FileType”设置为“Text”。在您的程序中，只需执行资源<资源名称>.toString（）；读取文件。

我不建议将此作为最佳实践或任何东西，但它工作迅速，可以做它需要做的事情。

这是一个类，您可能会发现从当前程序集读取嵌入式资源文件非常方便：

using System.IO;
using System.Linq;
using System.Text;
using System.Reflection;

public static class EmbeddedResourceUtils
{
    public static string ReadFromResourceFile(string endingFileName)
    {
        var assembly = Assembly.GetExecutingAssembly();
        var manifestResourceNames = assembly.GetManifestResourceNames();

        foreach (var resourceName in manifestResourceNames)
        {
            var fileNameFromResourceName = _GetFileNameFromResourceName(resourceName);
            if (!fileNameFromResourceName.EndsWith(endingFileName))
            {
                continue;
            }

            using (var manifestResourceStream = assembly.GetManifestResourceStream(resourceName))
            {
                if (manifestResourceStream == null)
                {
                    continue;
                }

                using (var streamReader = new StreamReader(manifestResourceStream))
                {
                    return streamReader.ReadToEnd();
                }
            }
        }

        return null;
    }
    
    // https://stackoverflow.com/a/32176198/3764804
    private static string _GetFileNameFromResourceName(string resourceName)
    {
        var stringBuilder = new StringBuilder();
        var escapeDot = false;
        var haveExtension = false;

        for (var resourceNameIndex = resourceName.Length - 1;
            resourceNameIndex >= 0;
            resourceNameIndex--)
        {
            if (resourceName[resourceNameIndex] == '_')
            {
                escapeDot = true;
                continue;
            }

            if (resourceName[resourceNameIndex] == '.')
            {
                if (!escapeDot)
                {
                    if (haveExtension)
                    {
                        stringBuilder.Append('\\');
                        continue;
                    }

                    haveExtension = true;
                }
            }
            else
            {
                escapeDot = false;
            }

            stringBuilder.Append(resourceName[resourceNameIndex]);
        }

        var fileName = Path.GetDirectoryName(stringBuilder.ToString());
        return fileName == null ? null : new string(fileName.Reverse().ToArray());
    }
}