import scala.collection.mutable.ArrayBuffer val a = ArrayBuffer[Int]() a+=(1,2,3,4,5) a.trimEnd(3) a res15: scala.collection.mutable.ArrayBuffer[Int] = ArrayBuffer(1, 2)
Scala的对字符串应用
原文：https://www.cnblogs.com/zhaohadoopone/p/11198328.html
