Show 例子 2

尝试以下示例程序以了解Scala编程语言中可用的所有关系运算符。

例子 (Example)

object Demo {
   def main(args: Array[String]) {
      var a = 10;
      var b = 20;
      println("a == b = " + (a == b) );
      println("a != b = " + (a != b) );
      println("a > b = " + (a > b) );
      println("a < b = " + (a < b) );
      println("b >= a = " + (b >= a) );
      println("b <= a = " + (b <= a) );
   }
}

将上述程序保存在Demo.scala 。 以下命令用于编译和执行此程序。

Command

\>scalac Demo.scala
\>scala Demo

输出 (Output)

a == b = false
a != b = true
a > b = false
a < b = true
b >= a = true
b <= a = false