Scala算数运算符

Scala的运算

object inout05 {
  def main(args: Array[String]): Unit = {
    
    println(2+1)
    println(2-1)
    println(2*3)
    println(5/2)
    println(5/2.0)
    println(5%2)
    println(123%10)
  }
}

object inout06 {
  def main(args: Array[String]): Unit = {
    var b = 1 == 2
    println(3 == 2)
    println(3 != 2)
    println(3 > 2)
    println(3 < 2)
    println(3 >= 2)
    println(3 <= 2)
  }
}

scala逻辑运算符

object inout07 {
  def main(args: Array[String]): Unit = {
    println(2>1)
    var a = 2>1
    println( !a)
    println( !(2>1))
  }
}

习题

object inout09 {
  def main(args: Array[String]): Unit = {
var a=1234
    println(a / 1000) //1
    println((a / 100) % 10) //2
    println((a / 10) % 10) //3
    println(a % 10) //4
  }
}