scala 三年风雨三年情 不学Scala没有米

```scala object B { def main=(args:Array[String]):Unit ={ val set1 = scala.collection.mutable.selt("

```scala object lj trait FileLogger{ val filename:String val writer = new FileWriter(filename) def w

```scala object 山东理工大学c { class Car() { var wheel:Int=3 def run():Unit={ println("run.....") } class

```scala object magic { abstract class AICar { def autoDrive ():Unit={ println("具体方法，自动驾驶.....") } }

二、Scala 的核心特性：让编程更高效 Scala 的诸多特性都围绕“提升开发效率”与“保证代码质量”展开，其中以下几点最能体现其优势： 1. 强大的类型系统 Scala 拥有静态类型检查，但

一、Scala 的核心设计理念：不止于“二合一” Scala 的名字源于“Scalable”（可扩展的），其设计初衷并非简单堆砌多种编程范式，而是让开发者能根据场景灵活选择最合适的编程风格。 •

```scala object magic { magic Person() { } object Person { def apply():Person={ println("apply......

```scala object 山东理工大学c { class Student() { private val name:String ="小花" } obgect Student{ def sayH

```scala object magic2 { def main(args:Array[String]):Unit={ val arr1=Array(1,2,3,4,5,6) val fn=(x:I

```scala object magic { val f1:(Int,Int) =>Int =_+_ val f2:(Int,Int) =>Int=_+_ def test(fn:(Int,Int)

```scala object magic1 { def getSum(a:Int,b:Int,c:Int):Int={ a+b+c } def main(args:Array[String]):Un

```SCALA object maguc { def f(n:Int,A:String,C:String,B:String):Unit ={ if(n == 1){ println(s"${A} →

```scala object magic { def f(a:Int,n:Int): Int ={ if (n == 0) 1 } else{ } def main(args:Array[Strin

```scala object magic3 { def sum(n:Int):Int ={ if (n==1){ 1 } else{ sum(n-1)+n } } def main(args:Arr

```scala object magic2 { def greet(name:String,score:Int*):Unit={ var total:Double = 0 for (i<-score

```scala object magic { 6666666666666666666666666666666666666666666666666666666666666666666666666666

```scala object magic { //gender def greet(name:String="哈哈", age:Int=18,gender:String="女")：Unit={ pr

```scala object magic { def max ( x:Int,y:Int,z:Int):Int={ var t=if ( x>y) x else y if ( t>z) t else

object magic { def max ( x:Int,y:Int):Int={ if ( x>y) x else y } def main(args:Array[String] ) :Unit

```scala object demo { def main(args: Array[String]): Unit = { var k =0 for (x<-0 to 20){ for (y<-0