import Foundation
import Glibc
//枚举类Gender的定义
enum Gender:Int {
case female,male
// static func < (gender1: Gender, gender2: Gender) ->Bool{
// return gender1.rawValue < gender2.rawValue
// }
}
//Person类的定义
class Person {
//Person类属性定义
var firstName:String
var lastName:String
var age:Int
var gender:Gender
var fullName:String { return firstName + " " + lastName }
//构造函数
init (firstName:String, lastName:String, age:Int, gender:Gender){
self.firstName = firstName
self.lastName = lastName
self.age = age
self.gender = gender
}
//便利构造函数
convenience init (firstName:String, lastName:String) {
self.init (firstName: firstName, lastName: lastName,age: 19, gender: Gender.male)
}
//信息显示
func printInfo() -> String {
return "Name: \(fullName) Age: \(age) Gender: \(gender)"
}
//==和!=方法，用于比较两个Person类实例是否相同
static func == (person1:Person, person2:Person) -> Bool {
return (person1.fullName == person2.fullName && person1.age == person2.age && person1.gender == person2.gender)
}
static func != (person1:Person, person2:Person) -> Bool {
return (person1.fullName != person2.fullName || person1.age != person2.age || person1.gender != person2.gender)
}
}
//Person类的派生类Teacher类
class Teacher: Person {
//Teacher类新增属性title的定义
var title: String
//构造函数
init (firstName:String, lastName:String, age:Int, gender:Gender, title: String){
self.title = title
super.init(firstName: firstName, lastName: lastName, age: age, gender: gender)
}
//显示信息
override func printInfo() -> String {
return super.printInfo() + " Title: \(title)"
}
}
//Person类的派生类Student类
class Student: Person {
//Student类新增属性stuNo的定义
var stuNo: String
//构造函数
init (firstName:String, lastName:String, age:Int, gender:Gender, stuNo: String){
self.stuNo = stuNo
super.init(firstName: firstName, lastName: lastName, age: age, gender: gender)
}
//显示信息
override func printInfo() -> String {
return super.printInfo() + " StudentNo: \(stuNo)"
}
}
//多个类实例的构建
//Person类
var person1 = Person(firstName: "Finn", lastName: "Wolfhard", age: 15 , gender: Gender.male)
print(person1.printInfo())
var person2 = Person(firstName: "Tarjei", lastName: "Sandvikmoe")
print(person2.printInfo())
var person3 = Person(firstName: "Tao", lastName: "Lu", age: 30 , gender: Gender.male)
//Teacher类
var teacher1 = Teacher(firstName: "John", lastName: "Keating", age: 35, gender: Gender.male, title: "principal")
var teacher2 = Teacher(firstName: "Graham", lastName: "Coxon", age: 49, gender: Gender.male, title: "guitar_teacher")
print(teacher1.printInfo())
//Student类
var studentA = Student(firstName: "Maria", lastName: "Ray", age: 18, gender: Gender.female, stuNo: "2018010101")
print(studentA.printInfo())
var studentB = Student(firstName: "James", lastName: "Mcavoy", age: 19, gender: Gender.male, stuNo: "2018010102")
//判断是否为同一人
var isEqual = (person1 == person2)
var isNotEqual = (person1 != person2)
print("Are they the same person?")
if isEqual || !isNotEqual{
print("Yes, they are the same person")
}
else{
print("No, they are different persons")
}
//创建人群数组
var people = [person1, person2, person3, teacher1, teacher2, studentA, studentB]
var result = [
"pTotalNo": 0,
"tTotalNo": 0,
"sTotalNo": 0
]
//创建类别统计字典
for i in people {
result["pTotalNo"]? += 1
if i is Teacher {
result["tTotalNo"]? += 1
}
else if i is Student {
result["sTotalNo"]? += 1
}
}
print(result)
//对数组排序并输出
print("Sorting by age")
people.sort(){$0.age < $1.age}
for i in people {
print(i.printInfo())
}
print("Sorting by fullName")
people.sort(){$0.fullName < $1.fullName}
for i in people {
print(i.printInfo())
}
print("Sorting by gender and age")
people.sort(){
if($0.gender.rawValue < $1.gender.rawValue){
return ($0.gender.rawValue < $1.gender.rawValue)
}else{
return $0.age < $1.age
}
}
for i in people {
print(i.printInfo())
}
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