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import Foundation
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enum InsufficientEnergy:Error {
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case crazyThursdayVMe50
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}
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class Entity {
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let ID, name: String
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init?(id ID: String, name: String) {
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self.ID = ID
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self.name = name
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let reFormula = try! NSRegularExpression(pattern: "^\\d{13}$", options: [NSRegularExpression.Options.anchorsMatchLines])
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let matchRange = NSRange(ID.startIndex..<ID.endIndex, in: ID)
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let matchList = reFormula.matches(in: ID, range: matchRange)
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if matchList.count != 1 {
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return nil
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}
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}
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convenience init(id ID: String) {
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self.init(id: ID, name: "Unknown")!
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}
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}
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class People: Entity {
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func work() throws -> Void {
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if Int.random(in: 1...7) == 7 {
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throw InsufficientEnergy.crazyThursdayVMe50
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}
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}
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}
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class Student: People {
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override init?(id ID: String, name: String){
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super.init(id: ID, name: name)
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let reFormula = try! NSRegularExpression(pattern: "^20\\d{2}[1-3]\\d{8}$", options: [NSRegularExpression.Options.anchorsMatchLines])
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let matchRange = NSRange(ID.startIndex..<ID.endIndex, in: ID)
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let matchList = reFormula.matches(in: ID, range: matchRange)
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if matchList.count != 1 {
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return nil
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}
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}
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}
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class Cat: Entity {
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override init?(id ID: String, name: String){
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super.init(id: ID, name: name)
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let reFormula = try! NSRegularExpression(pattern: "^20\\d{2}[1-3]\\d{8}$", options: [NSRegularExpression.Options.anchorsMatchLines])
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let matchRange = NSRange(ID.startIndex..<ID.endIndex, in: ID)
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let matchList = reFormula.matches(in: ID, range: matchRange)
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if matchList.count != 1 {
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return nil
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}
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}
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}
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// 以下的内容将能够判断名为 ID 的字符串是否满足13位数字，以20xx开头，第5位为1-3的情况，可以直接照搬
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// let reFormula = try! NSRegularExpression(pattern: "^20\\d{2}[1-3]\\d{8}$", options: [NSRegularExpression.Options.anchorsMatchLines])
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// let matchRange = NSRange(ID.startIndex..<ID.endIndex, in: ID)
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// let matchList = reFormula.matches(in: ID, range: matchRange)
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// if matchList.count != 1 {
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// return false
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// }
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// return true
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// 以下的内容将能够判断名为 ID 的字符串是否满足13位数字的情况，可以直接照搬
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// let reFormula = try! NSRegularExpression(pattern: "^\\d{13}$", options: [NSRegularExpression.Options.anchorsMatchLines])
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// let matchRange = NSRange(ID.startIndex..<ID.endIndex, in: ID)
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// let matchList = reFormula.matches(in: ID, range: matchRange)
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// if matchList.count != 1 {
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// return false
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// }
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// return true
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// 以下的内容将能够判断名为 ID 的字符串是否满足13位数字，开头为0000的情况，可以直接照搬
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// let reFormula = try! NSRegularExpression(pattern: "^0000\\d{9}$", options: [NSRegularExpression.Options.anchorsMatchLines])
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// let matchRange = NSRange(ID.startIndex..<ID.endIndex, in: ID)
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// let matchList = reFormula.matches(in: ID, range: matchRange)
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// if matchList.count != 1 {
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// return false
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// }
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// return true
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var siuziu = Student(id: "2022202121000", name: "小趙")
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var siuchow = Student(id: "2000503205613", name: "小周")
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var studentList = [siuziu, siuchow]
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for item in studentList {
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guard item != nil else {
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print("Invalid students")
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continue
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}
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do {
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var count = 0
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while true{
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count += 1
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try item!.work()
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print("Siu Ziu has worked for \(String(count)) \(count <= 1 ? "hour" : "hours").")
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}
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}
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catch InsufficientEnergy.crazyThursdayVMe50 {
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print("I'm hungry, please v me 50!")
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}
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}
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