Ｃ＃操作系统注册表using Microsoft.Win32;

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（１）引用命名空间using Microsoft.Win32;

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（２）利用registry类实现：注册表的读写删除操作，下面是我自己编写的一个类（该类主要实现针对一个特定的注册表键值进行的操作，可以稍加修改成一个通用的类）

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public
class Reg
{
//给SOFTWARE目录下的“XXXX”项写值
public void writeREG(string count)
{
RegistryKey hkml = Registry.LocalMachine;
RegistryKey software = hkml.OpenSubKey("SOFTWARE", true);
RegistryKey cameracount = software.CreateSubKey("XXXX");
cameracount.SetValue("count", count);
string names = Convert.ToString(cameracount.GetValue("count"));
}
<pre name="code" class="csharp">
 

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 //读取SOFTWARE目录下的“XXXX”项值

public string readREG() 

{ 

RegistryKey hkml = Registry.LocalMachine; 

RegistryKey software = hkml.OpenSubKey("SOFTWARE", true); 

RegistryKey cameracount = software.OpenSubKey("XXXX"); 

string count = Convert.ToString(cameracount.GetValue("count")); return count; 

}

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<span style="font-family: Arial, Helvetica, sans-serif;"> //SOFTWARE目录下的“XXXX”项</span>

public void deleteREG() 

{ 

RegistryKey hkml = Registry.LocalMachine; 

RegistryKey software = hkml.OpenSubKey("SOFTWARE", true); 

software.DeleteSubKey("XXXX", false); 

}

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//判断SOFTWARE目录下的“XXXX”项是否存在

public bool isExistREG() 

{

 bool exit = false; 

string[] subkeyNames; 

RegistryKey hkml = Registry.LocalMachine; 

RegistryKey software = hkml.OpenSubKey("SOFTWARE", true); 

subkeyNames = software.GetSubKeyNames(); 

foreach (string keyName in subkeyNames) 

{

 if (keyName == "XXXX") 

{ 

exit = true; 

return exit; 

} 

} 

return exit;

 }

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