how to display all the items of array in label Xcode 8 -

i want ask how display items of array in label. i'm using xcode 8. saw teacher uses:

labelname.text = "\{arrayname}"

but it's not works in xcode,

i have tried

for in 0..<arrayname.count     {                     labelname.text = arrayname[i]      }

but it's show last item. thank xd

i realized that, made mistake "(" , "{"

it must this

label.text = "\(arrayname)"

but want ask how display each item in each line? thank anyway xd

RT