读写注册表 registrykey 创建删除

namespace WindowsFormsApplication1

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void Form1_Load(object sender, EventArgs e)

        {

            this.listBox1.Items.Clear();

            RegistryKey abc = Registry.LocalMachine;

            RegistryKey sub = abc.OpenSubKey(@"software",true);

            RegistryKey test= sub.CreateSubKey("clp2016test");

            test.SetValue("testapp","dasfdf");

            foreach (string str in sub.GetSubKeyNames())

            {

                listBox1.Items.Add("子项名 :" + str);

                RegistryKey subname = sub.OpenSubKey(str);

                foreach (string sSubname in subname.GetValueNames())

                {

                    listBox1.Items.Add(sSubname+" 值： "+subname.GetValue(sSubname));

                }

            }

        }

        private void button1_Click(object sender, EventArgs e)

        {

            this.listBox1.Items.Clear();

            RegistryKey abc = Registry.LocalMachine;

            RegistryKey sub = abc.OpenSubKey(@"software", true);// 权限

            sub.DeleteSubKeyTree("clp2016test"); //删除

            foreach (string str in sub.GetSubKeyNames())

            {

                listBox1.Items.Add("子项名 :" + str);

                RegistryKey subname = sub.OpenSubKey(str);

                foreach (string sSubname in subname.GetValueNames())

                {

                    listBox1.Items.Add(sSubname + " 值： " + subname.GetValue(sSubname));

                }

            }

        }

    }

}