Scala does not break and continue two keywords
scala.util.control.Breaks._ Import
# so you can use the break statement and breakable, break the keyword here is not, but a method used to throw an exception scala
Scala is divided into an array variable and non-variable array group, the default variable is not set
scala.collection.mutable.ArrayBuffer Import
Val arrBUfInt = ArryBuffer [Int] ()
# using the method for introducing a variable array ArryBuffer