C#获取注册表的子键和值

Question

在控制台上输出指定注册表键中的所有值及子键（包含子键中的值）

Answer 1

 

using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Win32;
namespace ConsoleApp1
{
    class Program
    {
        static RegistryKey GetRootKey(string root)
        {
            switch (root) {
                case "HKEY_CLASSES_ROOT": return Registry.ClassesRoot;
                case "HKEY_CURRENT_USER": return Registry.CurrentUser;
                case "HKEY_LOCAL_MACHINE": return Registry.LocalMachine;
                case "HKEY_USERS": return Registry.Users;
                case "HKEY_CURRENT_CONFIG": return Registry.CurrentConfig;
                default:throw new Exception("顶级注册表键不存在");
            }
        }
        static void Recursion(RegistryKey key)
        {
            if (key.SubKeyCount > 0)
            {
                var subKeys = key.GetSubKeyNames();
                foreach (var sk in subKeys)
                {
                    Recursion(key.OpenSubKey(sk));
                }
            }

            var vns = key.GetValueNames();
            Console.WriteLine("\n\n" + key.Name);
            foreach (var vn in vns)
                Console.WriteLine((vn==""?"默认":vn) + "：" + key.GetValue(vn));
        }
        static void Main(string[] args)
        {
            Console.Write("输入注册表路径：");
            var s = Console.ReadLine();
            var keys = s.Split('\\');
            var rootkey = GetRootKey(keys[0]);
            var key = rootkey.OpenSubKey(String.Join("\\", keys.Skip(1)));
            Recursion(key);


            Console.ReadKey();
        }
    }
}