scala> if(age>18){
| println("give u 10w,for marry")
| }else{
scala> if(age>18){
| println("give u 10w,for marry")
| }else{
| println("10$ go to play games")
| }
give u 10w,for marry
| println("10$ go to play games")
| }
give u 10w,for marry