scala中的特质叠加的执行顺序
package com.learnscala4
object scala_trait3 {
def main(args: Array[String]): Unit = {
val mysql:mysql =new mysql
mysql.op()
//打印log DB OP
}
}
trait operate{
def op():Unit={
println("operate")
}
}
trait DB extends operate{
override def op(): Unit = {
println("DB")
super.op()
}
}
trait Log extends operate{
override def op(): Unit = {
println("log")
super.op()
}
}
class mysql extends DB with Log{
}
scala学习仓库地址：https://gitee.com/qh123/scala_learn
