代碼

import SwiftUI

struct ContentView: View {

??var body: some View {

????VStack {

??????Text("\(Date())").padding()

??????Text(Date().formatted(Date.FormatStyle().year().day().month()))

??????Text(Date().formatted(date: ?.abbreviated, time: .complete))

??????Button{

????????var current=Calendar.current

????????let toDaystart=current.startOfDay(for: Date())

????????print("todaystart",toDaystart)

????????let tommorrowStart=current.date(byAdding: .day, value: 1, to: toDaystart) ?? Date()

????????print("tommorrowStart",tommorrowStart)

??????}label:{

????????Text("初始時間")

??????}

??????Button{

????????let now=Date()

????????var matchingComponents=DateComponents()

????????matchingComponents.weekday=2

????????let comingDay=Calendar.current.nextDate(after: now, matching: matchingComponents, matchingPolicy: .nextTime) ?? Date()

????????print("comingDay",comingDay)

?????????

?????????

??????}label: {

????????Text("日期匹配")

??????}

?????????

????}

??}

}

struct ContentView_Previews: PreviewProvider {

??static var previews: some View {

????ContentView()

??}

}

效果