JScript中的注册表操作

JScript中WScipt.Shell对象有三个关于注册表操作的函数,即RegRead,RegWrite和RegDelete.(以下内容摘自MSDN,另外我加上了一些示例和注释)

1,RegRead

Returns the value of a key or value-name from the registry.

object.RegRead(strName) 

Arguments

object

WshShell object.

strName

String value indicating the key or value-name whose value you want.

 Remarks

The RegRead method returns values of the following five types.

 

Type	Description	In the Form of
REG_SZ	A string	A string
REG_DWORD	A number	An integer
REG_BINARY	A binary value	A VBArray of integers
REG_EXPAND_SZ	An expandable string (e.g., "%windir%\\calc.exe")	A string
REG_MULTI_SZ	An array of strings	A VBArray of strings

You can specify a key-name by ending strName with a final backslash. Do not include a final backslash to specify a value-name. A value entry has three parts: its name, its data type, and its value. When you specify a key-name (as opposed to a value-name), RegRead returns the default value. To read a key's default value, specify the name of the key itself. Fully qualified key-names and value-names begin with a root key. You may use abbreviated versions of root key names with the RegRead method. The five possible root keys are listed in the following table.

Root key Name	Abbreviation
HKEY_CURRENT_USER	HKCU
HKEY_LOCAL_MACHINE	HKLM
HKEY_CLASSES_ROOT	HKCR
HKEY_USERS	HKEY_USERS
HKEY_CURRENT_CONFIG	HKEY_CURRENT_CONFIG

示例:

var shell = new ActiveXObject("WScript.Shell");    
//If the value name or key name does not exist,then an exception will throwed!
var key1 = shell.RegRead("HKEY_CURRENT_USER\\Liang\\bvalue");//suppose bvalue is of type REG_BINARY
var array1=new VBArray(key1);
var array=array1.toArray();
var msg="";
for(var i=0;i<array.length;i++)
    msg += array[i].toString(16)+"  ";
WScript.Echo(msg);