如保获取程序集的路径 assembly 返回

public static string AssemblyDirectory
{    
    get
    {  
        string codeBase = Assembly.GetExecutingAssembly().CodeBase;
        UriBuilder uri = new UriBuilder(codeBase);        
        string path = Uri.UnescapeDataString(uri.Path);        
        return Path.GetDirectoryName(path);
    }
}