C# 操作注册表

using System;
using Microsoft.Win32;

namespace TunEc.ZHJF.Common
{
    public class OperateReg
    {
        /// <summary>
        /// 读取指定名称的注册表的值
        /// </summary>
        /// <param name="name">注册表值</param>
        /// <returns></returns>
        public static string GetRegData(string strItemName)
        {
            try
            {
                string registData;
                RegistryKey hkml = Registry.LocalMachine;
                RegistryKey software = hkml.OpenSubKey("SOFTWARE", true);
                RegistryKey zhjf = software.CreateSubKey("ZHJF");
                // RegistryKey zhjf = software.OpenSubKey("ZHJF", true);
                registData = zhjf.GetValue(strItemName.ToLower()).ToString();
                return registData;
            }
            catch (Exception ex)
            {
                MessageboxX.ShowError(ex.Message);
                return "";
            }
        }

        /// <summary>
        /// 注册表中写数据 
        /// </summary>
        /// <param name="name">注册表</param>
        /// <param name="tovalue">值</param>
        public static void WriteReg(string strItemName, string strItemValue)
        {
            try
            {
                RegistryKey hklm = Registry.LocalMachine;
                RegistryKey software = hklm.OpenSubKey("SOFTWARE", true);
                RegistryKey zhjf = software.CreateSubKey("ZHJF");
                zhjf.SetValue(strItemName.ToLower(), strItemValue);
            }
            catch (Exception ex)
            {
                MessageboxX.ShowError(ex.Message);
            }
        }

        /// <summary>
        /// .删除注册表中指定的注册表项
        /// </summary>
        /// <param name="name">注册表</param>
        public static void DeleteRegItem(string strItemName)
        {
            try
            {
                RegistryKey hkml = Registry.LocalMachine;
                RegistryKey software = hkml.OpenSubKey("SOFTWARE", true);
                RegistryKey zhjf = software.CreateSubKey("ZHJF");
                zhjf.DeleteValue(strItemName.ToLower());
            }
            catch (Exception ex)
            {
                MessageboxX.ShowError(ex.Message);
            }
        }

        /// <summary>
        /// 判断指定注册表项是否存在
        /// </summary>
        /// <param name="name">注册表</param>
        /// <returns></returns>
        public static bool IsRegExit(string strItemName)
        {
            try
            {
                bool _exit = false;
                string[] subkeyNames;
                RegistryKey hkml = Registry.LocalMachine;
                RegistryKey software = hkml.OpenSubKey("SOFTWARE", true);
                RegistryKey zhjf = software.CreateSubKey("ZHJF");
                // RegistryKey zhjf = software.OpenSubKey("ZHJF", true);
                subkeyNames = zhjf.GetValueNames();
                foreach (string keyName in subkeyNames)
                {
                    if (keyName.ToLower() == strItemName.ToLower())
                    {
                        _exit = true;
                        return _exit;
                    }
                }
                return _exit;
            }
            catch (Exception ex)
            {
                MessageboxX.ShowError(ex.Message);
                return false;
            }
        }

    }
}