&引用；Windows在这个时候出人意料；尝试比较批处理脚本中的2个字符串时出错

我正在编写一个批处理脚本，以使用USMT将计算机从XP更新到7。因为USMT有一个在OS升级之前需要运行的scanstate组件和一个在OS升级之后必须运行的loadstate计算机，所以我尝试使用if语句来检查操作系统是什么，然后运行正确的命令。我是新的批处理文件，但从我一直在阅读的一切，似乎我写得很好，但我显然搞砸了某个地方。我得到一个“Windows此时出现意外错误”。我还知道，由于我包含的暂停命令，变量设置正确。我还尝试使用

如果%WINVERSION%==%XP%goto XPTRUE/WIN7TRUE

，并将所有内容括在

：XPTRUE/WIN7TRUE

下的括号中，但这会产生相同的错误

::Don't have commands print...only outputs are printed
@echo off
:: Set constants
SET XP=Microsoft Windows XP [Version 5.1.2600]
SET WIN7=Microsoft Windows [Version 6.1.7601]
SET XPUSMTLOCATION=C:\Program Files\USMT\Binaries\v4\x86
SET 7USMTLOCATION=C:\Program Files (x86)\USMT\Binaries\v4\amd64
SET BACKUPLOACTION=\\[SERVER IP]\z$\UserAccountBackUps\Backups
SET LOCALBACKUPLOCATION=C:\Backup\USMT
SET NASBACKUPLOCATION=S:\UserAccountBackUps\Backups
@PAUSE
::Get the current version of Windows batch file is running on and store it in WINVERSION
FOR /f "delims=" %%A IN ('ver') DO @SET WINVERSION=%%A
echo %WINVERSION%
PAUSE
::Get the MAC address of the computer and store it in MACA
FOR /F %%A IN ('getmac') DO @SET MACA=%%A
echo The MAC Address is: %MACA%
:: Tell user about script
echo This is a script designed to migrate computers with one network card from Windows XP to Windows 7 using USMT, this script should not be used with computers that have multiple network cards
echo Xp is %XP%
echo 7 is %WIN7%
::Check to see if the current version is XP
PAUSE

IF %WINVERSION% == %XP% (
echo This is windows XP
::Change directory to the location of USMT files
cd %XPUSMTLOCATION%
::Run scanstate to create backup
scanstate.exe C:\Backup /i:"\\[SERVER IP]\z$\UserAccountBackUps\USMT_XML_Files\MigApp.xml" /i:"\\[SERVER IP]\z$\UserAccountBackUps\USMT_XML_Files\MigDocs.xml" /i:"\\[SERVER IP]\z$\UserAccountBackUps\USMT_XML_Files\MigUser.xml" /o /v:2
::Change directory to the location of where the USMT backup is
cd %LOCALBACKUPLOCATION%
::Rename the backup to the MAC Address
rename USMT.MIG %MACA%.MIG
::Map the NAS to a drive because xcopy can not take IP addresses
echo Mapping NAS to drive
::NAS is mapped to drive S, if S is used for something else change s below to different letter
net use s: \\[SERVER IP]\z$
echo Prepairing to copy backup to NAS
::Use xcopy to transfer backup file the /v ensures the files are identical
::This must be done this way because if USMT tries to backup directly to the NAS it tries to overwrite all existing files
xcopy %LOCALBACKUPLOCATION%\%MACA%.MIG %NASBACKUPLOCATION% /v
echo The copy has completed, run this batch file again after OS Upgrade
)

IF %WINVERSION% == %WIN7% (
echo This is Windows 7
PAUSE
)

当我在Windows 7计算机上运行此操作时，我得到以下信息：

我在我的XP计算机上得到相同的输出，只是它告诉我当前版本是XP。非常感谢您的帮助

下一行：

FOR /f "delims=" %%A IN ('ver') DO @SET WINVERSION=%%A

IF %WINVERSION% == %XP% (

IF "%WINVERSION%" == "%XP%" (

在WINVERSION变量中存储一个字符串，该字符串包含由空格分隔的多个单词，例如：

SET WINVERSION=Microsoft Windows [Version 6.2.9200]

这样，下面的行：

FOR /f "delims=" %%A IN ('ver') DO @SET WINVERSION=%%A

IF %WINVERSION% == %XP% (

IF "%WINVERSION%" == "%XP%" (

扩展到：

IF Microsoft Windows [Version 6.2.9200] == Microsoft Windows XP [Version 5.1.2600] (

当然，这会导致语法错误！键入：

IF/？

以了解更多详细信息

比较可能包含空格的两个字符串的方法是将它们括在引号中：