How to call parameters in a function

I added a parameter to the function and returned a value to the parameter when calling the function. So how can we get the value returned by this parameter when using a function?

Hello, I tried the expression Functions.functionname(parameter), but it said that the expression is invalid. I don’t know if it is not set properly.

I want to implement such function

Return a value to parameter A when calling the function in Add Action

Then when using this function in Add Event, compare whether the value of parameter A is equal to a certain condition.

do you mean this?

Just use the local variables and then compare the variables

I followed your method, but I don't know why, the system said "This is an invalid expression"

It’s best to provide screenshots of your eventsheet or c3p project, otherwise we won’t be able to help you.

I'm using Chinese, I'll try my best to explain

I use it when LoopIndex=54, when calling "调用函数 百科卡牌界面置顶（职业：“符师”）"

When the return value of the comparison parameter is "“符师”", the event of "文本_百科卡牌备注”的事件"

OK, thanks for your help