ios - How to place variables inside button target selector -

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i have button add target to, selector contain variable.
can add variable selector without receiving error?
thank in advance.

//this cause selector error when run self.save.addtarget(self, action: #selector(self.saveitems(datatosave)), forcontrolevents: .touchupinside)

create additional function use action selector argument

func helperfunc() {     self.saveitems(datatosave) }

and add it

self.save.addtarget(self, action: #selector(self.helperfunc), forcontrolevents: .touchupinside)

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