本周Kotlin学习

学习内容以及笔记部分展示

部分练习代码展示

fun main () {
    var stu1 = Student("xiaoming",13)
    var stu2 = Student ("xiaohong",15)
    println((stu1<stu2))

}
class Student(var name :String ,var age : Int ) {
 operator fun compareTo(another:Student): Int {
     return this.age-another.age
 }
}

fun main () {
    var stu = Student("",13)
    var str :String ?= stu?.name ?:"空"
}

fun main () {
    var stu = Student("xiaohong",16)
    var (a,b)=stu
    println("名字$a  年龄+100：$b")
}
class Student(var name :String ,var age : Int ) {
    operator fun component1() = name+"hello"
    operator fun component2() = age+100

}

Al问题解答

下周计划

利用Kotlin语言，实现cs构架