package chapter01

object HelloWorld {
  def main(args: Array[String]): Unit = {
  var name="何喵喵"
  var age = 18
  //1.
  println(name+" "+age)
  //2.
  printf("%s已经%d岁了",name,age)
    //3. s raw f
    println(s"${name}已经${18}岁了")
    //4.
    var sql =
      """
        |你好
        |何小汪
        |汪汪汪~
        |""".stripMargin
      print(sql)
  }
}