ContentView_Croner_Radii.swift

//use any way you want
struct ContentView: View {
    var body: some View {
        VStack {
            Rectangle()
                .frame(width: 100, height: 100, alignment: .center)
                .cornerRadius(radius: 20.0, corners: [.topLeft])
            
            Rectangle()
                .frame(width: 100, height: 100, alignment: .center)
                .cornerRadius(radius: 20.0, corners: [.topLeft, .bottomLeft])
            
            Rectangle()
                .frame(width: 100, height: 100, alignment: .center)
                .cornerRadius(radius: 20.0, corners: [.allCorners])
            
        }
    }
}