using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Threading.Tasks;
using?System.Windows.Forms;
using?OpcUaHelper;
namespace?WindowsFormsApp1
{?
????public?partial?class?Form1?:?Form
????{??private?OpcUaClient?opcUaClient?=?new?OpcUaClient（）;//實例化一個客戶端對象
????????UInt16?data_send;?Boolean?data_send1;
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}


??????
????????private?void?Form1_Load（object?sender?EventArgs?e）
????????{
??????????????opcUaClient.ConnectServer（“opc.tcp://192.168.0.1:4840“）;//連接一個服務器
????????????//opcUaClient.Disconnect（）;//關閉服務器連接
????????????//opcUaClient.UserIdentity?=?new?Opc.Ua.UserIdentity（“admin“?“123456“）;//服務器的需要密碼時

???????????
????????}
????????///?

????????///?讀取節點代碼如下
????????///?

????????///?
????????///?
????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
????????????try
????????????{
????????????????UInt16?value?=?opcUaClient.ReadNode（“ns=3;s=\“數據塊_1\“.\“ac\““）;
????????????????
????????????????//??bool?a?=?opcUaClient.ReadNode（“ns=3;s=PLC_1/Memory/Tag_1“）;
????????????????//textBox1.Text?=?“nihao“;
????????????????//MessageBox.Show（）;?//?顯示測試數據To;
?????????????????textBox1.Text?=?Convert.ToString（value）.ToUpper（）;
???????????????//?textBox1.Text?=?opcUaClient.ReadNode（“ns=3;s=Tag_1“）;
????????????}
???????????catch?（Exception?ex）
????????????{
???????????????//?使用了opc?ua的錯誤處理機制來處理錯誤，網絡不通或是讀取拒絕
????????????????Opc.Ua.Client.Controls.ClientUtils.HandleException（Text?ex）;
????????????}
????????}

????????private?void?button2_Click（object?sender?EventArgs?e）
????????{
????????????try
????????????{

????????????????data_send?=?Convert.ToUInt16（?textBox2.Text10）;
???????????????
????????????????bool?IsSuccess?=?opcUaClient.WriteNode（“ns=3;s=\“數據塊_1\“.\“ac\““?data_send）;
????????????????MessageBox.Show（IsSuccess.ToString（））;?//?顯示True，如果成功的話
????????????}
????????????catch?（Exception?ex）
????????????{
????????????????//?使用了opc?ua的錯誤處理機制來處理錯誤，網絡不通或是讀取拒絕
????????????????Opc.Ua.Client.Controls.ClientUtils.HandleException（Text?ex）;
????????????}
????????}

????????private?void?label3_Click（object?sender?EventArgs?e）
????????{

????????}

????????private?void?button4_Click（object?sender?EventArgs?e）
????????{
????????????try
????????????{
????????????????bool?value1?=?opcUaClient.ReadNode（“ns=3;s=\“Tag_3\““）;

???????????????
????????????????textBox4.Text?=?Convert.ToString（value1）.ToUpper（）;
???????????????
????????????}
????????????catch?（Exception?ex）
????????????{
????????????????//?使用了opc?ua的錯誤處理機制來處理錯誤，網絡不通或是讀取拒絕
????????????????Opc.Ua.Client.Controls.ClientUtils.HandleException（Text?ex）;
????????????}
????????}

????????private?void?button3_Click（objec

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-10-05?15:11??OPC_success2版\
?????目錄???????????0??2018-10-05?15:11??OPC_success2版\WindowsFormsApp1\
?????目錄???????????0??2018-10-05?15:11??OPC_success2版\WindowsFormsApp1\.vs\
?????目錄???????????0??2018-10-05?15:11??OPC_success2版\WindowsFormsApp1\.vs\WindowsFormsApp1\
?????目錄???????????0??2018-10-05?15:11??OPC_success2版\WindowsFormsApp1\.vs\WindowsFormsApp1\DesignTimeBuild\
?????文件?????????218??2018-06-27?14:10??OPC_success2版\WindowsFormsApp1\.vs\WindowsFormsApp1\DesignTimeBuild\.dtbcache
?????目錄???????????0??2018-10-05?15:11??OPC_success2版\WindowsFormsApp1\.vs\WindowsFormsApp1\v15\
?????文件???????57344??2018-06-27?14:10??OPC_success2版\WindowsFormsApp1\.vs\WindowsFormsApp1\v15\.suo
?????目錄???????????0??2018-10-05?15:11??OPC_success2版\WindowsFormsApp1\.vs\WindowsFormsApp1\v15\Server\
?????目錄???????????0??2018-10-05?15:11??OPC_success2版\WindowsFormsApp1\.vs\WindowsFormsApp1\v15\Server\sqlite3\
?????文件???????????0??2018-06-13?16:11??OPC_success2版\WindowsFormsApp1\.vs\WindowsFormsApp1\v15\Server\sqlite3\db.lock
?????文件?????1175552??2018-06-27?14:08??OPC_success2版\WindowsFormsApp1\.vs\WindowsFormsApp1\v15\Server\sqlite3\storage.ide
?????文件???????32768??2018-06-27?14:08??OPC_success2版\WindowsFormsApp1\.vs\WindowsFormsApp1\v15\Server\sqlite3\storage.ide-shm
?????文件?????4185952??2018-06-27?14:08??OPC_success2版\WindowsFormsApp1\.vs\WindowsFormsApp1\v15\Server\sqlite3\storage.ide-wal
?????目錄???????????0??2018-10-05?15:11??OPC_success2版\WindowsFormsApp1\packages\
?????目錄???????????0??2018-10-05?15:11??OPC_success2版\WindowsFormsApp1\packages\OpcUaHelper.1.0.2\
?????目錄???????????0??2018-10-05?15:11??OPC_success2版\WindowsFormsApp1\packages\OpcUaHelper.1.0.2\lib\
?????文件??????116736??2018-02-04?19:40??OPC_success2版\WindowsFormsApp1\packages\OpcUaHelper.1.0.2\lib\Opc.Ua.Client.dll
?????文件??????583168??2018-02-04?19:40??OPC_success2版\WindowsFormsApp1\packages\OpcUaHelper.1.0.2\lib\Opc.Ua.ClientControls.dll
?????文件??????121344??2018-02-04?19:40??OPC_success2版\WindowsFormsApp1\packages\OpcUaHelper.1.0.2\lib\Opc.Ua.Configuration.dll
?????文件?????3962880??2018-02-04?19:40??OPC_success2版\WindowsFormsApp1\packages\OpcUaHelper.1.0.2\lib\Opc.Ua.Core.dll
?????文件??????175616??2018-02-04?19:40??OPC_success2版\WindowsFormsApp1\packages\OpcUaHelper.1.0.2\lib\OpcUaHelper.dll
?????文件???????34286??2018-02-04?19:40??OPC_success2版\WindowsFormsApp1\packages\OpcUaHelper.1.0.2\lib\OpcUaHelper.xml
?????文件?????1319726??2018-06-13?16:20??OPC_success2版\WindowsFormsApp1\packages\OpcUaHelper.1.0.2\OpcUaHelper.1.0.2.nupkg
?????目錄???????????0??2018-10-05?15:11??OPC_success2版\WindowsFormsApp1\WindowsFormsApp1\
?????文件????????1147??2018-06-13?16:11??OPC_success2版\WindowsFormsApp1\WindowsFormsApp1.sln
?????文件?????????189??2018-06-13?16:10??OPC_success2版\WindowsFormsApp1\WindowsFormsApp1\App.config
?????目錄???????????0??2018-10-05?15:11??OPC_success2版\WindowsFormsApp1\WindowsFormsApp1\bin\
?????目錄???????????0??2018-10-05?15:11??OPC_success2版\WindowsFormsApp1\WindowsFormsApp1\bin\Debug\
?????文件??????116736??2018-02-04?19:40??OPC_success2版\WindowsFormsApp1\WindowsFormsApp1\bin\Debug\Opc.Ua.Client.dll
?????文件??????583168??2018-02-04?19:40??OPC_success2版\WindowsFormsApp1\WindowsFormsApp1\bin\Debug\Opc.Ua.ClientControls.dll
............此處省略36個文件信息