Swift3.0 - 文本输出

class Person:CustomStringConvertible  {
    var name: String
    var age: Int
    var weight:Double
    init(name:String,age:Int,weight:Double) {
        self.name = name
        self.age = age
        self.weight = weight
    }
    var description: String{
        return name + String(age) + String(weight)
    }
}
  let person = Person(name: "酷走天涯", age: 25,weight:150.0)
  // 获取对象文本
  let des = String(describing: person)
  print(des)

 class Person:NSObject,CustomStringConvertible {
    var name: String
    var age: Int
    var weight:Double
   init(name:String,age:Int,weight:Double) {
        self.name = name
        self.age = age
        self.weight = weight
    }
    var description: String{
        return name + String(age) + String(weight)
    }
}

class Person:NSObject {
    var name: String
    var age: Int
    var weight:Double
    init(name:String,age:Int,weight:Double) {
        self.name = name
        self.age = age
        self.weight = weight
    }
   override var description: String{
        return name + String(age) + String(weight)
    }
}