Question

我是Swift的新手，我想在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;考虑将表达式分解为不同的子表达式”。

我认为我想在打印时管理属性的方法是错误的，但我找不到原因。

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

问题与继承无关。 \(...)用于字符串插值，只能在 in 字符串中使用，例如：

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

而不是

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

print（）的长参数会产生错误“表达式太复杂而无法解决”

1 个答案: