How to add two variables in robot framework

Robot Framework
1

hi
I am new at robot framework
I want fetch value from UI and after that performed the addition operation on that two value
result i get that two value like [‘703\nDC’] + [‘4773\nMC’]
fetch value like 703\nDC
second one 4773\nMC

@{element} =   Get Items List  ${loc_mc_dc}
@{CountList} =    Create List
@{CountList1} =   Create List
Append To List  ${CountList}  ${element}[0]
Append To List  ${CountList1}  ${element}[1]
${num1}=  Set Variable   ${CountList}
${num2}=  Set Variable   ${CountList1}
${mysum}=  Set Variable   ${CountList} + ${CountList1}
Log To Console     ${mysum}
2

Here is my answer based on your example:

*** Test Cases ***
Sum Two Numbers
    ${num1}=    Set Variable    703\nDC
    ${num1}=    Convert To Integer    ${num1.split()[0]}
    ${num2}=    Set Variable    4773\nMC
    ${num2}=    Convert To Integer    ${num2.split()[0]}
    ${mysum}=    Set Variable    ${num1} + ${num2}
    Log To Console    This is not the expected result: ${mysum}
    ${mysum}=    Set Variable    ${${num1}+${num2}}
    Log To Console    This is a possible way to get the expected result: ${mysum}
    ${mysum}=    Evaluate    ${num1} + ${num2}
    Log To Console    This is another possible way to get the expected result: ${mysum}\nMy preferred way :).
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3

Thanks
${num1}= Set Variable 703\nDC
${num1}= Convert To Integer ${num1.split()[0]}
${num2}= Set Variable 4773\nMC
${num2}= Convert To Integer ${num2.split()[0]}
${mysum}= Set Variable ${num1} + ${num2}
${mysum}= Set Variable ${${num1}+${num2}}
Log To Console This is a possible way to get the expected result: ${mysum}

after that i get result like that
Resolving variable ‘${[‘703’]+[‘4773’]}’ failed: Variable ‘${[}’ not found.

and after used ${mysum} = Set Variable ${num1}+${num2}
result is .[‘703’]+[‘4773’] only number

I also try with these one
${mysum} = Evaluate ${num1} + ${num2}
result is .[‘703’, ‘4773’]

4

My example was a fully working example. You need to adjust yours, to use the elements correctly.

When you see ${[‘703’]+[‘4773’]}, this means you did not get the first elements of the lists, before converting to integer. If you have a list mylist=[‘703’] you need to get its first element, for example: ${mynum}= Convert To Integer ${mylist[0]}.

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