String comparison in batch file - string comparison in batch file

problem ：

How do we compare strings which got space and special chars in batch file? How do we compare strings with spaces and special characters in batch files ？

I am trying: I'm trying ：

if %DevEnvDir% == "C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\"(echo VS2010)

But it gives an error "Files was unexpected at this time." But it gives an error “ The document was unexpected at this time .”

I tried: I tried ：

if "%DevEnvDir%" == "C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\"(echo VS2010)

But it gives an error "The syntax of the command is incorrect." But it gives an error “ The syntax of the command is incorrect ”.

Any ideas? Do you have any ideas ？

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Solution ：

Reference resources ： https://stackoom.com/en/question/10kHv