MapKitexpress
if 條件1,條件2,條件3 {}spa
switch discipline { case 條件1,條件2 : }3d
do {ip
try <#throwing expression#>ci
} catch <#pattern#> {it
<#statements#>io
}class
MKMapViewmargin
MKPinAnnotationView di
MKAnnotation
MKMapItem
MKPlacemark