你需要提供完整的路径和文件名 Assembly.LoadFrom（..） [ ^ ]，例如：

You need to provide the full path and file name to Assembly.LoadFrom(..)[^], e.g.:

Assembly assembly = Assembly.LoadFrom(@"c:\test\MyAssembly.dll");

但是你只提供了一条路径（或者，如果插件是名称对于该文件，您必须附加.dll或者，不太可能，但.exe）。



评论后编辑：



要从特定目录加载所有程序集，可以使用 Directory.EnumerateFiles（..） [ ^ ]从目录中检索所有（匹配）文件，然后遍历 IEnumerable< string&gt ; -result逐个加载它们。 （链接的页面有示例代码。）

But you only provided a path (or, if "plugin" is the name of the file, you have to append ".dll" or, unlikely but possible, ".exe").

Edit after comment:

To load all assemblies from a specific directory, you can use Directory.EnumerateFiles(..)[^] to retrieve all (matching) files from the directory and then loop over the IEnumerable<string>-result to load them one by one. (The linked page has a sample code.)