//
//  ViewController.swift
//  FristPecject
//
//  Created by Mac on 2023/3/18.
//import UIKitclass ViewController: UIViewController {// 定义变量var index1: Int = 0var index2: Int = 0// let 常量 数组let diceArr = ["dice1", "dice2", "dice3", "dice4", "dice5", "dice6"]@IBOutlet weak var diceImageView2: UIImageView!@IBOutlet weak var diceImageView1: UIImageView!@IBAction func roll(_ sender: Any) {//index1 = Int.random(in: 1...6)//index2 = Int.random(in: 1...6)//index1 = Int.random(in: 0...5)//index2 = Int.random(in: 0...5)//diceImageView1.image = UIImage(named: "dice" + String(index1))  // 设置图片属性// 字符串插值//diceImageView1.image = UIImage(named: "dice\(index1)")//diceImageView2.image = UIImage(named: "dice" + String(index2) )//数组下标//diceImageView1.image = UIImage(named: diceArr[index1])//diceImageView2.image = UIImage(named: diceArr[index2])updateDiceImages()}// 生命周期 初次加载执行override func viewDidLoad() {super.viewDidLoad()// Do any additional setup after loading the view.// 打印print("hello")updateDiceImages()getMilke(nums: 3)let res = getMilkeI(nums: 4)print("函数返回值是：\(res)")let resI = getMilkeII(nums: 4, total: 100)print(resI)let resII = caleBMI(weight: 69.5, height: 1.8)print(resII)// for 循环let arrs = [1, 2, 3, 4, 5]var sum = 0for arr in arrs{sum += arr}print(sum)}// 函数func updateDiceImages(){index1 = Int.random(in: 0...5)index2 = Int.random(in: 0...5)//diceImageView1.image = UIImage(named: "dice" + String(index1))  // 设置图片属性// 字符串插值//diceImageView1.image = UIImage(named: "dice\(index1)")//diceImageView2.image = UIImage(named: "dice" + String(index2) )//数组下标diceImageView1.image = UIImage(named: diceArr[index1])diceImageView2.image = UIImage(named: diceArr[index2])}// 摇一摇 系统自带函数override func motionBegan(_ motion: UIEvent.EventSubtype, with event: UIEvent?) {updateDiceImages()}// 函数// 定义函数的时候同时定义参数，此时参数被称为形式参数/形参func getMilke(nums:Int){let aMilkMoney = 20let totalMoney = aMilkMoney * numsprint("去商店")print("买\(nums)箱牛奶")print("给\(totalMoney)元钱")}// 函数的返回值func getMilkeI(nums:Int) -> Int{let aMilkMoney = 20let totalMoney = aMilkMoney * numsreturn totalMoney}func getMilkeII(nums:Int, total:Int) -> String{let aMilkMoney = 20let totalMoney = aMilkMoney * numsreturn "买了\(nums)箱牛奶,一共\(totalMoney),给了\(total),找回\(total - totalMoney)"}func caleBMI(weight: Double, height: Double) -> String{let bmi = round(weight / pow(height, 2))var message = ""if bmi > 25 {message = "你太胖了"}else if bmi > 18.5{message = "你的身体很健康"}else{message = "你太瘦了"}return message}}