第1年6月30日 swiftui playgrounds

1.

import SwiftUI
import PlaygroundSupport

struct ContentView : View {
    @State var index = 0
    var body: some View {
    
        VStack{
            Text("hello world")
            .padding()
            Text("\(self.index)")
                .padding()
            
            Button("tap me"){
                self.index = self.index+1
            }
        }
    }
    
}


PlaygroundPage.current.setLiveView(ContentView())

https://www.jianshu.com/p/00eeafbfc163

标签：index,ContentView,playgrounds,self,30,padding,swiftui,var,import
来源： https://www.cnblogs.com/javastart/p/14953462.html