Batch-file “and if” statement

问题

I have no idea at all how to make an "and if" statement for my batch file, and I hope I could get some help in here.

The line I'm trying to make:

if %a%==X/O and if %b%==X/O goto done

回答1:

Batch doesn't have support for ands or ors in if logic. You can simulate an and by nesting your conditions.

if %a%==X/O (
    if %b%==X/O (
        goto done
    )
)

Similarly, you can simulate an or by having two separate checks.

if %a%==X/O goto done
if %b%==X/O goto done

来源：https://stackoverflow.com/questions/33708207/batch-file-and-if-statement