jixianqiuxue 发表于 2015-4-1 23:55:03

case _:Cat与 case _ =>区别

case _:Cat => "Got a Cat (ignoring the name)"
case _ => "That was something else"
      前面一行和后面一行的区别是啥      

desehawk 发表于 2015-4-1 23:55:22

Cat类型匹配


页: [1]
查看完整版本: case _:Cat与 case _ =>区别