打印（）的长参数会产生错误“表达式太复杂而无法解决”

Question

我是新的Swift，当我想要构建此代码时遇到问题。 “表达太复杂，无法在合理的时间内解决;考虑将表达分解为不同的子表达式”。

我想我的方法来管理属性，当我想打印的东西是错误的，但我没有找到原因。

class Personne{ 
    var name : String 
    var forename : String 
    init(name : String, forename:String) { 
     self.name = name 
     self.forename = forename 
    } 
} 

class UnilStudent : Personne{ 
    var id : Int 
    var section : String 
    init(name :String, forename:String, id:Int, section:String) { 
     self.section = section 
     self.id = id 
     super.init(name:name, forename:forename) 
} 

    func affiche() { 
     print("Unil student N°" + \(self.id) + " : " + \(self.name) + \(self.forename) + "\n" + \(self.section + "\n")} 
} 

class Assistants : UnilStudent{ 
    var assistantship : String 
    init(name :String, forename:String, id:Int, section:String, assistantship : String){ 
    self.assistantship = assistantship 
    super.init(name :name, forename:forename, id:id, section:section) 
} 

    override func affiche() { 
     super.affiche() 
     print("Unil student N°" + \(self.id) + " : " + \(self.name) + " " + \(self.forename) + "\n from " + \(self.section) + "is a student assistant for" + \(self.assistantship) + "\n")} 

    func printid(){ 
     print("L'id de " + \(self.name) + " " + \(self.forename) + " est " + \(self.id)) 

} 
} 


let Adrien = Assistants(name : "BOB", forename : "BOBBY", id : 12000000, section : "FDCA", assistantship : "ACT") 
let Alice = UnilStudent(name: "Hapoka", forename : "Alice", id : 17000000, section : "HEC") 


print(Adrien) 

Answer 1

该问题与继承无关。 \(...)为串内插和只能用于内部一个字符串，例如：

print("Unil student N°\(self.id) : \(self.name)\(self.forename)") 

代替

print("Unil student N°" + \(self.id) + " : " + \(self.name) + \(self.forename))