VS2012的注释与反注释快捷键

注释是(Ctrl+K, Ctrl+C)，实际操作，按住Ctrl键不放，先按K键，再按C键。相当于Ctrl+K加 Ctrl+C的组合键。

反注释是(Ctrl+K, Ctrl+U)。

//调试打印语句

Debug.WriteLine(indata);

获得可用的串口

1.

//获取所有的串口
            string[] portlist = SerialPort.GetPortNames();
            for (int i = 0; i < portlist.Length; i++)
            {
                this.comboBox1.Items.Add(portlist[i]);
            }  

2.这个方法会出现“未将对象引用设置到对象的实例”，问题出在哪里了呢？

这种方法没行通!

 RegistryKey keycom = Registry.LocalMachine.OpenSubKey("Hardware\\DevinceMap\\SerialComm");
            try
            {
               
                string[] subkeys = keycom.GetValueNames();
                
                string[] str_key = new string[subkeys.Length];
                for (int i = 0; i < subkeys.Length; i++)
                {
                   this.comboBox1.Items.Add(str_key[i]);
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
                return;
            }

3.错误 1 未能找到类型或命名空间名称“ManagementClass" 解决（VS2012)

这个主要是因为未添加引用，

选中工程，右键，添加引用选项，出现引用管理器对话框，如图

选中缺少的引用。

4.一段获得CPU硬件信息的代码

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 System.Management;

namespace test
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        public void GetInfo()
        {
            string cpuInfo = "";//cpu序列号  
            ManagementClass cimobject = new ManagementClass("Win32_Processor");
            ManagementObjectCollection moc = cimobject.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                cpuInfo = mo.Properties["ProcessorId"].Value.ToString();

                this.richTextBox1.AppendText("cpu序列号：" + cpuInfo.ToString() + "\r\n ");
                
            }
            //获取硬盘ID  
            String HDid;
            ManagementClass cimobject1 = new ManagementClass("Win32_DiskDrive");
            ManagementObjectCollection moc1 = cimobject1.GetInstances();
            foreach (ManagementObject mo in moc1)
            {
                HDid = (string)mo.Properties["Model"].Value;

                this.richTextBox1.AppendText("硬盘序列号：" + HDid.ToString() + "\r\n ");
            }
            //获取网卡硬件地址  
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection moc2 = mc.GetInstances();
            foreach (ManagementObject mo in moc2)
            {
                if ((bool)mo["IPEnabled"] == true)

                    this.richTextBox1.AppendText("MAC address\t{0}" + mo["MacAddress"].ToString() + "\r\n ");
                mo.Dispose();
            }
        }

        public string GetSerialPort()
        {
            string strPortInfo = " ";
            ManagementClass mc = new ManagementClass("Win32_SerialPort");
            ManagementObjectCollection moc = mc.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                strPortInfo = strPortInfo + mo["Name"].ToString() + "\r\n ";
               
            }

            return strPortInfo;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string str = GetSerialPort();
           // this.richTextBox1.AppendText("dddd");
            this.richTextBox1.AppendText(str);
            GetInfo();
        }
    }
}

代码已测试，结果如图

5.C#获得计算机的硬件配置

---------------------------------------------------- 
最后给你附上一段程序 
/* ********************************************** 
* Rainsoft Development Library for Microsoft.NET 
* 
* Copyright (c) 2004,2005 RainTrail Studio.China 
* All Rigths Reserved! 
* Author: Q.yuhen ([email protected]) 
********************************************** */ 
using System; 
using System.Management; 
using System.Collections; 
using System.Collections.Specialized; 
using System.Text; 

namespace Rainsoft.Management 
{ 
#region WMIPath 
public enum WMIPath 
{ 
// 硬件 
Win32_Processor, // CPU 处理器 
Win32_PhysicalMemory, // 物理内存条 
Win32_Keyboard, // 键盘 
Win32_PointingDevice, // 点输入设备，包括鼠标。 
Win32_FloppyDrive, // 软盘驱动器 
Win32_DiskDrive, // 硬盘驱动器 
Win32_CDROMDrive, // 光盘驱动器 
Win32_BaseBoard, // 主板 
Win32_BIOS, // BIOS 芯片 
Win32_ParallelPort, // 并口 
Win32_SerialPort, // 串口 
Win32_SerialPortConfiguration, // 串口配置 
Win32_SoundDevice, // 多媒体设置，一般指声卡。 
Win32_SystemSlot, // 主板插槽 (ISA & PCI & AGP) 
Win32_USBController, // USB 控制器 
Win32_NetworkAdapter, // 网络适配器 
Win32_NetworkAdapterConfiguration, // 网络适配器设置 
Win32_Printer, // 打印机 
Win32_PrinterConfiguration, // 打印机设置 
Win32_PrintJob, // 打印机任务 
Win32_TCPIPPrinterPort, // 打印机端口 
Win32_POTSModem, // MODEM 
Win32_POTSModemToSerialPort, // MODEM 端口 
Win32_DesktopMonitor, // 显示器 
Win32_DisplayConfiguration, // 显卡 
Win32_DisplayControllerConfiguration, // 显卡设置 
Win32_VideoController, // 显卡细节。 
Win32_VideoSettings, // 显卡支持的显示模式。 

// 操作系统 
Win32_TimeZone, // 时区 
Win32_SystemDriver, // 驱动程序 
Win32_DiskPartition, // 磁盘分区 
Win32_LogicalDisk, // 逻辑磁盘 
Win32_LogicalDiskToPartition, // 逻辑磁盘所在分区及始末位置。 
Win32_LogicalMemoryConfiguration, // 逻辑内存配置 
Win32_PageFile, // 系统页文件信息 
Win32_PageFileSetting, // 页文件设置 
Win32_BootConfiguration, // 系统启动配置 
Win32_ComputerSystem, // 计算机信息简要 
Win32_OperatingSystem, // 操作系统信息 
Win32_StartupCommand, // 系统自动启动程序 
Win32_Service, // 系统安装的服务 
Win32_Group, // 系统管理组 
Win32_GroupUser, // 系统组帐号 
Win32_UserAccount, // 用户帐号 
Win32_Process, // 系统进程 
Win32_Thread, // 系统线程 
Win32_Share, // 共享 
Win32_NetworkClient, // 已安装的网络客户端 
Win32_NetworkProtocol, // 已安装的网络协议 
} 
#endregion 

/// <summary> 
/// 获取系统信息 
/// </summary> 
/// <example> 
/// <code> 
/// WMI w = new WMI(WMIPath.Win32_NetworkAdapterConfiguration); 
/// for (int i = 0; i < w.Count; i ++) 
/// { 
/// if ((bool)w[i, "IPEnabled"]) 
/// { 
/// Console.WriteLine("Caption:{0}", w[i, "Caption"]); 
/// Console.WriteLine("MAC Address:{0}", w[i, "MACAddress"]); 
/// } 
/// } 
/// </code> 
/// </example> 
public sealed class WMI 
{ 
private ArrayList mocs; 
private StringDictionary names; // 用来存储属性名，便于忽略大小写查询正确名称。 

/// <summary> 
/// 信息集合数量 
/// </summary> 
public int Count 
{ 
get { return mocs.Count; } 
} 

/// <summary> 
/// 获取指定属性值，注意某些结果可能是数组。 
/// </summary> 
public object this[int index, string propertyName] 
{ 
get 
{ 
try 
{ 
string trueName = names[propertyName.Trim()]; // 以此可不区分大小写获得正确的属性名称。 
Hashtable h = (Hashtable)mocs[index]; 
return h[trueName]; 
} 
catch 
{ 
return null; 
} 
} 
} 

/// <summary> 
/// 返回所有属性名称。 
/// </summary> 
/// <param name="index"></param> 
/// <returns></returns> 
public string[] PropertyNames(int index) 
{ 
try 
{ 
Hashtable h = (Hashtable)mocs[index]; 
string[] result = new string[h.Keys.Count]; 

h.Keys.CopyTo(result, 0); 

Array.Sort(result); 
return result; 
} 
catch 
{ 
return null; 
} 
} 

/// <summary> 
/// 返回测试信息。 
/// </summary> 
/// <returns></returns> 
public string Test() 
{ 
try 
{ 
StringBuilder result = new StringBuilder(1000); 

for (int i = 0; i < Count; i++) 
{ 
int j = 0; 
foreach(string s in PropertyNames(i)) 
{ 
result.Append(string.Format("{0}:{1}={2}\n", ++j, s, this[i, s])); 

if (this[i, s] is Array) 
{ 
Array v1 = this[i, s] as Array; 
for (int x = 0; x < v1.Length; x++) 
{ 
result.Append("\t" + v1.GetValue(x) + "\n"); 
} 
} 
} 
result.Append("======WMI=======\n"); 
} 

return result.ToString(); 
} 
catch 
{ 
return string.Empty; 
} 
} 

/// <summary> 
/// 构造函数 
/// </summary> 
/// <param name="path"></param> 
public WMI(string path) 
{ 
names = new StringDictionary(); 
mocs = new ArrayList(); 

try 
{ 
ManagementClass cimobject = new ManagementClass(path); 
ManagementObjectCollection moc = cimobject.GetInstances(); 

bool ok = false; 
foreach(ManagementObject mo in moc) 
{ 
Hashtable o = new Hashtable(); 
mocs.Add(o); 

foreach (PropertyData p in mo.Properties) 
{ 
o.Add(p.Name, p.Value); 
if (!ok) names.Add(p.Name, p.Name); 
} 

ok = true; 
mo.Dispose(); 
} 
moc.Dispose(); 
} 
catch(Exception e) 
{ 
throw new Exception(e.Message); 
} 
} 

/// <summary> 
/// 构造函数 
/// </summary> 
/// <param name="path"></param> 
public WMI(WMIPath path): this(path.ToString()) 
{ 
} 
} 
}

网址在浏览器中打开：

System.Diagnostics.Process.Start("IExplore.exe", "http://www.xyjzvip.icoc.cc/"); 

System.Diagnostics.Process.Start(@"http://www.xyjzvip.icoc.cc/"); // call default browser