是參照著 這篇文章寫出來的 https://blog.csdn.net/younghaiqing/article/details/61918968

以下是寫好的單例 只有基礎的功能

using Microsoft.Win32; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks;namespace TestTwo {class MyRegistryInstance{private static MyRegistryInstance instance;public static MyRegistryInstance Instance(){if (instance == null){instance = new MyRegistryInstance();}return instance;}/// <summary>/// 創建注冊表項/// </summary>/// <param name="itemName">創建的注冊表項的name</param>public void creatRegistryFunc(string itemName){//創建 創建注冊表項主要用到RegistryKey 的CreateSubKey()方法RegistryKey key = Registry.LocalMachine;//RegistryKey software = key.CreateSubKey("software\\test");RegistryKey software = key.CreateSubKey("software\\"+itemName);}/// <summary>/// 打開注冊表項/// </summary>/// <param name="itemName">要打開的注冊表項的name</param>public void openRegistryFunc(string itemName){//打開 打開注冊表項主要用到RegistryKey 的OpenSubKey()方法。 注意，如果該注冊表項不存在，調用這個方法會拋出異常RegistryKey key = Registry.LocalMachine;//RegistryKey software = key.OpenSubKey("software\\test", true);//注意該方法后面還可以有一個布爾型的參數，true表示可以寫入。false為只讀RegistryKey software = key.OpenSubKey("software\\"+itemName, true);}/// <summary>/// 刪除注冊表項 注意，如果該注冊表項不存在，這調用這個方法會拋出異常/// </summary>/// <param name="itemName">要刪除的注冊表項的name</param>public void deleteRegistryFunc(string itemName){//刪除RegistryKey key = Registry.LocalMachine;//key.DeleteSubKey("software\\test", true);//注意，如果該注冊表項不存在，這調用這個方法會拋出異常key.DeleteSubKey("software\\" + itemName, true);key.Close();}/// <summary>/// 鍵值的創建(設置值、修改) 對鍵值的創建修改等操作/// </summary>/// <param name="itemName">要創建鍵值的注冊表項的name</param>/// <param name="keyName">要創建的鍵值對的name</param>/// <param name="keyValue">要創建的鍵值對的value</param>public void creatKeyFunc(string itemName,string keyName,string keyValue){//鍵值的創建(設置值、修改) 對鍵值的創建修改等操作主要用到RegistryKey 的SetValue()方法RegistryKey key = Registry.LocalMachine;//RegistryKey software = key.OpenSubKey("software\\test", true);//該項必須已存在RegistryKey software = key.OpenSubKey("software\\"+ itemName, true);//該項必須已存在//在HKEY_LOCAL_MACHINE\SOFTWARE\test下創建一個名為“test”，值為“博客園”的鍵值。如果該鍵值原本已經存在，則會修改替換原來的鍵值，如果不存在則是創建該鍵值。//software.SetValue("test", "博客園"); software.SetValue(keyName, keyValue);// 注意：SetValue()還有第三個參數，主要是用于設置鍵值的類型，如：字符串，二進制，Dword等等~~默認是字符串。如：// software.SetValue("test", "0", RegistryValueKind.DWord); //二進制信息 key.Close();}/// <summary>/// 讀取鍵值/// </summary>/// <param name="itemName">要讀取鍵值的注冊表項的name</param>/// <param name="keyName">要讀取的鍵值對的name</param>/// <returns>要讀取的鍵值對的value</returns>public string readKenFunc(string itemName,string keyName){string info = "";RegistryKey key;key = Registry.LocalMachine;//RegistryKey myReg = key.OpenSubKey("software\\test");RegistryKey myReg = key.OpenSubKey("software\\"+ itemName);// myReg = Key.OpenSubKey("software\\test",true);//info = myReg.GetValue("test").ToString();info = myReg.GetValue(keyName).ToString();myReg.Close();return info;}/// <summary>/// 刪除鍵值/// </summary>/// <param name="itemName">要刪除鍵值的注冊表項的name</param>/// <param name="keyName">要刪除的鍵值對的name</param>public void deleteKeyFunc(string itemName,string keyName){//刪除注冊表項Software\\test中的鍵名為test的值/*RegistryKey delKey = Registry.LocalMachine.OpenSubKey("Software\\test", true);delKey.DeleteValue("test");*/RegistryKey delKey = Registry.LocalMachine.OpenSubKey("Software\\"+ itemName, true);delKey.DeleteValue(keyName);delKey.Close();}/// <summary>/// 判斷注冊表項是否存在/// </summary>/// <param name="itemName">要判斷的注冊表項的name</param>/// <returns>boo 是則為true 否則為false</returns>public bool IsRegeditItemExist(string itemName){string[] subkeyNames;RegistryKey hkml = Registry.LocalMachine;RegistryKey software = hkml.OpenSubKey("SOFTWARE");//RegistryKey software = hkml.OpenSubKey("SOFTWARE", true); subkeyNames = software.GetSubKeyNames();//獲取該項下所有子項的名稱的序列，并傳遞給預定的數組中/*foreach (string keyName in subkeyNames){//判斷子項的名稱if (keyName == "test"){hkml.Close();return true;}}*/foreach (string _itemName in subkeyNames){//判斷子項的名稱if (_itemName == itemName){hkml.Close();return true;}}hkml.Close();return false;}/// <summary>/// 判斷鍵值是否存在/// </summary>/// <param name="itemName">要判斷鍵值的注冊表項的name</param>/// <param name="keyName">要判斷的鍵值對的name</param>/// <returns>boo 是則為true 否則為false</returns>public bool IsRegeditKeyExit(string itemName,string keyName){string[] subkeyNames;RegistryKey hkml = Registry.LocalMachine;//RegistryKey software = hkml.OpenSubKey("SOFTWARE\\test");RegistryKey software = hkml.OpenSubKey("SOFTWARE\\"+ itemName);//RegistryKey software = hkml.OpenSubKey("SOFTWARE\\test", true);subkeyNames = software.GetValueNames();//取得該項下所有鍵值的名稱的序列，并傳遞給預定的數組中/*foreach (string keyName in subkeyNames){if (keyName == "test"){hkml.Close();return true;}}*/foreach (string _keyName in subkeyNames){if (_keyName == keyName){hkml.Close();return true;}}hkml.Close();return false;}} }

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轉載于:https://www.cnblogs.com/lingLuoChengMi/p/8971202.html

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