1、for迴圈

 //for迴圈
    for(i <- 1 to 2; j<- 1 to 2){
      print(100*i+j + "  ");
    }
    println();
    //for迴圈
     for(i <- 1 to 2; j<- 1 to 2 if i!=j){
      print(100*i+j + "  ");
    }

101  102  201  202  
102  201  

 //函式
     def add(x:Int)=x+100;
     val add2=(x:Int)=>x+200;
     println("the add result:" + add(8));
     println("the add2 result:" + add2(8));
 

the add result:108
the add2 result:208

 //返回值型別
     def fac(n:Int):Int = {if(n<=0) 1 else n*fac(n-1);}
     println("the fac result:" + fac(5));

the fac result:120

 //預設值
     def combine(content:String,left:String="[",right:String="]")=left + content + right;
     println(combine("scala"));
 

[scala]

    //可變引數
     def variableFunc(args:Int*)={
       var result = 0;
       for(arg<-args)
         result += arg;
       result;
     }
     println("the result is :" + variableFunc(1,2,3,4,5));

the result is :15