//默认初始化方法
class Teacher {
var name:String = "xiaoming";
}
class Human {
var name :String?;
}
class Personal {
var name :String!
}
let teacher = Teacher();
print(teacher);
let human = Human();
print(human);
let personal = Personal();
print(personal);
//便利初始化方法
class Rect{
var width :Int;
var height :Int;
init(Int, height:Int){
self.width = width;
self.height = height;
}
convenience init(width w:Int, h:Int){
self.init( w, height: h);
}
convenience init(w:Int, h:Int){
self.init( w, height: h);
}
func getArea() -> Int {
return self.width * height;
}
}
var rect = Rect(w: 10, h:20);
print(rect.getArea());
rect = Rect( 20, height: 20);
print(rect.getArea());
rect = Rect( 20, h:30);
print(rect.getArea());
//使用闭包来设置默认值的初始化方法
class Student {
var score:[Int] = {
var scores:[Int] = Array();
for m in 0...3{
scores.append(m);
}
return scores;
}()
}
print(Student().score);