using System.DirectoryServices;为什么这句会错？

Question

应该没问题
给个asp.net quickstart的例子你using System;
using System.DirectoryServices;public class ADWrite {
    public static void Main(String[] args) {
        if ( args.Length!=3 ) {
            Console.WriteLine("用法：" + Environment.GetCommandLineArgs()[0] + " <ad_path> <property> <value>");
            Console.WriteLine ();
            Console.WriteLine ("按 Enter 键继续...");
            Console.ReadLine();
            return;
        }        DirectoryEntry objDirEnt = new DirectoryEntry(args[0]);
        Console.WriteLine("名称            = " + objDirEnt.Name);
        Console.WriteLine("路径            = " + objDirEnt.Path);
        Console.WriteLine("架构类别名称 = " + objDirEnt.SchemaClassName);
        Console.WriteLine(args[1] + " = " + (objDirEnt.Properties[args[1]][0]).ToString());
        Console.WriteLine("... 正在更改为 ");
        (objDirEnt.Properties[args[1]])[0] = args[2];
        objDirEnt.CommitChanges();
        Console.WriteLine(args[1] + " = " + (objDirEnt.Properties[args[1]][0]).ToString());
    }
}

Answer 1

还要到工程的“资源管理器”里添加 System.DirectoryServices.DLL的引用

Answer 2

肯定是忘了添加 System.DirectoryServices.DLL的引用了。