scala 05.9.17

object fwh08 {
  def main(args: Array[String]): Unit = {
    // 6&2=?
    //val a = 6
    //val b = 2
    //println(a & b)
    // 6|2=?

    val result = 10-2+3*4/2
    println(result)
    val a = true
    val b = false
    val c = false
    println(a||b&&c)
  }

}

1. 乘 (*) 除 (/) 模 (%) > 加 (+) 减 (-)
2. 算术 (+-*/%) > 关系 (><<=!=) > 赋值 (=)
3. && > ||（（优先级）

object fwh08 {
  def main(args: Array[String]): Unit = {
    // 6&2=?
    //val a = 6
    //val b = 2
    //println(a & b)
    // 6|2=?

   // val result = 10-2+3*4/2
    //println(result)
    //val a = true
    //val b = false
    //val c = false
    //println(a||b&&c)
    val a = 2147483647
    val b = 1
    val c = a - (a-b)/2
    println(c)
  }

}

object fwh09 {
  def main(args: Array[String]): Unit = {
    print("请输入年龄：")
    val age = scala.io.StdIn.readInt()
    if (age>=18){
      println("成年")
    }else{
      println("未成年")
    }
  }

}