我想你正在寻找Environment.SpecialFolder.MyDocuments和Environment.GetFolderPath.
string myDocuments = Environment.GetFolderPath
(Environment.SpecialFolder.MyDocuments);
string addins = Path.Combine(myDocuments, "Visual Studio 2005", "Addins");
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编辑:Pre-.NET 4,最后一行是:
string addins = Path.Combine(Path.Combine(myDocuments, "Visual Studio 2005"),
"Addins");
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