User mistake, was: Writeval( getfndata("LastSplitRatio")) cannot return correct result

Hello,
My symbol's split ratio is 2:1,but use

writeval( getfndata("LastSplitRatio")) 

show 2 not 2:1.

You are mistaken.
It IS correct value as GetFnData returns ratio as a NUMBER . 2 divided by 1 equals 2.0. A number. In case of 1:2 split you would get 0.5. A number.