《IOS高级应用开发技术》实验报告二详细答案

1、实验编号：2 四川师大OS应用开发技术实验报告_2017年9月2L日计算机科学学院 2015级_班实验名称：Swift类和子类姓名 学号：指导老师：_实验成绩：实验二_ Swift类和子类实验目的及要求用Swift语言编写类和子类，掌握类和子类的定义及使用实验内容 实现Person类：a) 要求具有 firstName, lastName ， age， gender 等存储属性，fullName 计算属性；其中gen der是枚举类型 (male, female)；b) 具有指定构造函数和便利构造函数 ；c) 两个Person实例对象可以用=和!=进行比较；d) Person实例可以直接用 p

2、rint输出；e) Person增加run方法(方法里面直接 print输出Person XXX is running;(2) 从Person分别派生 Teacher类和Student类：a) Teacher类增加属性title，实例可以直接用 print输出；b) Student类增加属性stuNo，实例可以直接用 print输出；c) Teacher和Student重载run方法(方法里面直接 print输出Teacher XXX isrunning 禾口 Student XXX is running)(3) 分别构造多个 Person、Teacher和Student对象，并将这些对象存入

3、同一个数组中；（4）新建一个协议 SchoolProtocol ,协议包括一个 department属性（Enum ,自己实现enum的定义）和 lendBook方法（随便写点内容，能区隔即可）；（5）修改Teacher和Student ，让这两个类实现该协议（6）对数组执行以下要求a）分别统计 Person、Teacher和Student对象的个数并放入一字典中，统计完后输出字典内容；b）对数组按以下要求排序并输出：age、fullName、gender+age ；c）对数组进行穷举，调用每个对象的run方法，同时调用满足协议SchoolProtocol 对象的 lendBook 方法；3、

4、主要仪器设备及药品：iMac （ Mac OS、XCode）三.实验结果的分析与评价（该部分如不够填写，请另加附页）（1）找出从1-10000的所有质数，将找出的质数存入可变数组，对数组进行正反排序并输出结果（采用5种以上的方法实现）；代码：func searchPrimNum() -> In tvar cha ngeArray = 2,3/定义可变数组var recordIsPrim = 0/用于记录判断质数for x in 4.10000 for y in 2.<x if x%y=0recordlsPrim+=1 breakif recordIsPrim=0 cha ngeAr

5、ray.appe nd(x)recordlsPrim=0retur n cha ngeArrayvar primNum = searchPrimNum()/升序排序primNum.sort()print("数组升序排列为：")prin t(primNum)*使其降序排列*/第一种实现数组降序排列方法func compare(m:l nt, n:l nt) -> Bool return m>nprimNum.sort(by: compare)print("第一种数组降序排列为：")prin t(primNum)/第二种 /primNum.sor

6、t(by: (m:l nt,n :l nt) -> Bool inreturn m>n)print("第二种数组降序排列为：")prin t(primNum)/ 第三种 /primNum.sort(m,n) ->Bool inreturn m>nprint("第三种数组降序排列为：")prin t(primNum)/ 第四种 /primNum.sort (m,n) inreturn m>nprint("第四种数组降序排列为：")prin t(primNum)/ 第五种 /primNum.sort(by:&

7、gt;)print("第五种数组降序排列为：")prin t(primNum)/ 第六种 /primNum.sort$0>$1print("第六种数组降序排列为：")prin t(primNum)运行结果：【花丸£人1U IK 1%47f iei, is.他,imf 11$,1B61,1171ra169171JJ777 9 2 1 1 J 6 B- B 2 4 5 6 7 8 9 0 1 1 1 1 171 1 277F1 31112枷3263 7 7 9 195 5 T B I z5 6 7 B 0 11 1 1 1 2 z9 7 7

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15、r E J jl 9463*7 J* J p* 8941； 眈匚01“ t OtO J r97199613,5461,9341,920 b9«5比S933t8893.8681,H5B9, 8"丸(2)代码：/性别枚举enum Gen der:l ntcase malecase femalestatic func >(lhs: Gen der,rhs: Gen der) -> Bool return lhs.rawValue < rhs.rawValue/departme nt枚举enum Departme nt:Stri ngcase teachercas

16、e stude nt/协议 protocol SchoolProtocolfunc len dbook()var departme nt:Departme ntget set/人类 class Pers on: CustomStri ngCon vertiblevar fisrtName: Stringvar lastName: Stringlet age: Intvar gen der: Gen dervar fullname:String get return fisrtName + lastName/构造函数in it(fisrtName:Stri ng,lastName:Stri ng

17、,age:l nt,ge nder:Ge nder)self.fisrtName = fisrtName self.lastName = lastName self.age = age self.ge nder = gen der/便利构造函数convenience init(fisrtName:String,lastName:String)self.i nit(fisrtName:fisrtName,lastName:lastName,age:O,ge nder:Ge nder.male)II此两个函数用于使两个Person实例对象可以用=和!=进行比较； static func =(lhs

18、:Person,rhs:Person) -> Bool return lhs.full name = rhs.full name static func !=(lhs:Person,rhs:Person) -> Bool retur n !(lhs = rhs) func run()prin t("Pers on (self.full name) is runnin g")/使其直接用print输出var descripti on: Stri ngreturn "全名：'(fullname) 年龄：(age) 性别：(gender)"

19、/老师类 class Teacher:Pers on ,SchoolProtocolvar title: Stringvar departme nt:Departme ntin it(title:Stri ng,fisrtName:Stri ng,lastName:Stri ng,age:I nt,ge nder:Ge nder)self.departme nt = Departme nt.teacher self.title = title super.i nit(fisrtName:fisrtName,lastName:lastName,age:age,ge nder:ge nder)co

20、nvenience init(fisrtName:String,lastName:String) self.i nit(title:"hello,every on e",fisrtName:fisrtName,lastName:lastName,age:18,ge nder:.male)override var description:String return ” 标题:(title) (super.description)"override func run()prin t("Teacher (self.full name) is running &

21、quot;)func len dbook()print("Teacher (self.fullname) lend one book from library")/学生类class Stude nt:Pers on, SchoolProtocolvar stuNo: Intvar departme nt: Departme ntin it(stuNo:I nt,fisrtName:Stri ng,lastName:Stri ng,age:l nt,ge nder:Ge nder)self.stuNo = stuNoself.departme nt = Departme nt

22、.stude ntsuper.i nit(fisrtName:fisrtName,lastName:lastName,age:age,ge nder:ge nder)convenience init(fisrtName:String,lastName:String)self.i ni t(stuNo:100110,fisrtName:fisrtName,lastName:lastName,age:18,ge nder:Ge nder.female)override var description:String return "(super.description) 学号：(stuNo

23、)"/重写override func run()prin t("Stude nt (self.full name) is running ")func len dbook()print("Student (self.fullname) borrow one book from library") var t = Teacher(fisrtName:" 希",lastName:"有")var s = Student(fisrtName:" 珍",lastName:"琪琪&quo

24、t;)prin t(t)t.run()t.le ndbook()print("”)prin t(s)s.run()s.len dbook()var pl = Person(fisrtName:"贾",lastName:"丽",age:19,gender:Gender.female)var p2 = Person(fisrtName:"李",lastName:" 好",age:21,gender:Gender.male)/ var p2 = Pers on( fisrtName:"wa"

25、)print("")/ prin t(p2)/ prin t(p1)/ p2.ru n()/ p1.ru n()/ prin t(p1 != p2)/ prin t(p1 = p2) var recordArray = Perso n()/ 构造多个 Person、Teacher 和 Student 对象for i in 1.2 let temporaryArrayPers on",age:i+30,ge nder:Ge nder.male)Perso n(fisrtName:"(i)",lastName:"recordArray.a

26、ppe nd(temporaryArrayPers on)/分别统计 Person、Teacher和Student对象的个数并放入一字典中 for i in 1.3 let temporaryArrayTeacher = Teacher(title:"你好",fisrtName:"(i)",lastName:" ",age:i+18,ge nder:.male)recordArray.appe nd(temporaryArrayTeacher) for i in 1.4 let temporaryArrayStude nt = Stu

27、de nt(stuNo:10000+i,fisrtName:"(i)",lastName:" ",age:i+12,ge nder:.female)recordArray.appe nd(temporaryArrayStude nt)var dictio nary = "Perso n":O,"Teacher":O,"Stude nt":O /prin t(dict ion ary)/ prin t(recordArray)for traverseArray in recordArrayif t

28、raverseArray is Stude nt dictio nary"Stude nt"! += 1else if traverseArray is Teacher dict ion ary"Teacher"! += 1elsedictio nary"Perso n"! += 1/输出字典内容print("输出字典内容:")for(key,value) in dict ion aryprin t("(key) : (value)个")/按照age排序：print("age"

29、;) recordArray.sort(by:return $0.age < $1.age) for traverseArray in recordArray prin t(traverseArray)print(”fullName”)recordArray.sort(by:return $0.fullname < $1.fullname)for traverseArray in recordArray prin t(traverseArray)print("gender+age")recordArray.sortreturn ($0.gender > $1.gender) && ($0.age > $1.age)for traverseArray