获取msdn的API

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Threading;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;
using System.IO;
using System.Net;
using System.Text.RegularExpressions;

namespace api_get {
    class Program {
        static void Main(string[] args) {
            string programfiles = Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles);
            string path = Path.Combine(programfiles, @"Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client");
            foreach (string each in Directory.GetFiles(path, "*.dll")) {
                Assembly assembly = Assembly.LoadFrom(each);
                Type[] cla = assembly.GetTypes();
                foreach (Type t in cla) {
                    Console.WriteLine("Class is    " + t); 
                    Console.WriteLine("http://msdn.microsoft.con/en-us/library/{0}/{1}.aspx", Path.GetFileNameWithoutExtension(each), t);
                    Type type = t.GetType(); 
                    var methods = type.GetMethods();
                    var property = type.GetProperties();

                    //WebClient wc = new WebClient();
                    foreach (MethodInfo met in methods) {
                        Console.WriteLine("Methdod is    " + met);
                    }
                    foreach (PropertyInfo pro in property) {
                        Console.WriteLine("Property is    " + pro);
                        Console.WriteLine("http://msdn.microsoft.con/en-us/library/{0}/{1}.{2}.aspx", Path.GetFileNameWithoutExtension(each), t, pro);
                        }
                    Console.ReadKey();
                }
                Console.ReadKey();
            }
            Console.ReadKey();
        }
    }
}

要获得msdn的类，以及它的方法属性等，通过Environment类，Path类，Directory类和aeembly类来获得其中的每一项，再依次读出来即可。由于单个页面可能不能显示出所有，通过Console.ReadKey()来实现分开显示效果。