zhanweichun的专栏

http://ofps.oreilly.com/titles/9780596155957/

有这样一个函数, 它接受一个函数(或者说闭包)作为参数:object Timer{  def oncePerSecond(callback: () => unit): unit = {    while (true){      callback()      Thread.sleep(1000)    }  }  def timeFlies(): unit = {     Console....