1.trimEnd：截取末尾几个长度的字符串
import scala.collection.mutable.ArrayBufferval a = ArrayBuffer[Int]()a+=(1,2,3,4,5)a.trimEnd(3) ares15: scala.collection.mutable.ArrayBuffer[Int] = ArrayBuffer(1, 2)
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import scala.collection.mutable.ArrayBufferval a = ArrayBuffer[Int]()a+=(1,2,3,4,5)a.trimEnd(3) ares15: scala.collection.mutable.ArrayBuffer[Int] = ArrayBuffer(1, 2)
转载于:https://www.cnblogs.com/zhaohadoopone/p/11198328.html