object Test {
  def main(args: Array[String]): Unit = {
    val tm = new TestMethod
    println(tm.sum(1, 1))
  }
}

class TestMethod {
  //定义一个求和方法
  def sum(x:Int,y:Int): Int ={
    x + y
  }
}

//将方法转为函数
val tfm = tm.sum _
println(tfm(1, 1))
//创建一个函数
val newFun = (x:Int,y:Int) => x + y
println(newFun(1, 1))