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Swift!?->
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uk_oasis
August 07, 2014
Programming
0
110
Swift!?->
swiftの記号が気になったので調べてみました
uk_oasis
August 07, 2014
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Transcript
SWIFT!?->
SwiftɺΞοϓϧͷiOS͓Α ͼOS XͷͨΊͷϓϩάϥϛϯ άݴޠɻWorldwide Developers Conference (WWDC) 2014Ͱൃද͞Ε(ry by wikipedia
!
?
->
ه߸͕ଟ͍ʂʂ
ҙຯΛௐͯΈͨ
?
nilΛڐ༰͢Δ var optional: String = nil // error var optional:
String? = nil
!
->
ଓ͖࣍ճɾɾ