How to do addition operation

[yun li]

Hey,

I'm trying to do an addition operation for two variables:

  ${count}=  Set Variable  ${0}+${1}

But the result is ${count} = 0+1, which is not my expectation, I want 0+1=1.

How can I do?  Need to write a .py method?

[Jussi Malinen]

Hi Yun Li!

Normally all variables are just interpreted as string and you get the
result "1 + 2". To actually evaluate the calculation you could do any
of the following:

a) ${count}= Evaluate ${0}+${1}

b) ${count}= Set Variable ${0 + 1}

c) your own python library

Best Regards,
Jussi

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[GerhardH]

Hello,

call keyword Eveluate:

${count}= Evaluate ${0]+${1}

Best regards
Gerhard