구조체
import SwiftUI
struct Elevator: View {
@State var myElevator = ElevatorStruct()
var body: some View {
VStack{
Text("층수 : \(myElevator.level)")
HStack{
Button{
myElevator.goDown()
}label: {
Text("아래로")
}
Button{
myElevator.goUp()
}label:{
Text("위로")
}
}//HStack
}//VStack
}//body
}//Elevator
struct ElevatorStruct {
var level: Int = 1
mutating func goDown(){
level = level - 1
}
mutating func goUp(){
level = level + 1
}
}
#Preview {
Elevator()
}
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