scala基础29-模式匹配初探

object Test {
	def main(args: Array[String]): Unit = {
		val data = 2
		data match {
			case 1 => println("First")
			case 2 => println("Second")
			case _ => println("Not Known Number")
		}
		
		//case后面如果是变量（val），那么这个val将接受match前面的值
		val result = data match {
			case i if i == 1 => "The First"
			case number if number == 2 => "The Second"
			case _ => "Not Known Number"
		}
		
		println(result)
		
		"Spark !".foreach { c => println(
			c match {
				case ' ' => "space"
				case ch => "Char: " + ch
			}
		)}
	}
}