//"""原生表达  val regex="""([0-9]+)([a-z]+)""".r  val numPattern="[0-9]+".r  val numberPattern="""/s+[0-9]+/s+""".r

  /** You can follow a string wITh `.r`, turning it into a `Regex`. E.g.  *  * `"""A/w*""".r` is the regular exPression for identifiers starting with `A`.  */  def r: Regex = r()

  //findAllIn()方法返回遍历所有匹配项的迭代器  for(matchString <- numPattern.findAllIn("99345 Scala,22298 Spark"))   PRintln(matchString) 

 /** Return all non-overlapping matches of this `Regex` in the given character   * sequence as a [[scala.util.matching.Regex.MatchIterator]],  * which is a sPEcial [[scala.collection.Iterator]] that returns the  * matched strings but can also be queried for more data about the last match,  * such as capturing groups and start position.  *   * A `MatchIterator` can also be converted into an iterator  * that returns objects of type [[scala.util.matching.Regex.Match]],  * such as is normally returned by `findAllMatchIn`.  *   * Where potential matches overlap, the First possible match is returned,  * followed by the next match that follows the input consumed by the  * first match:  *  * {{{  * val hat = "hat[^a]+".r  * val hathaway = "hathatthattthatttt"  * val hats = (hat findAllIn hathaway).toList      // List(hath, hattth)  * val pos = (hat findAllMatchIn hathaway map (_.start)).toList // List(0, 7)  * }}}  *  * To return overlapping matches, it is possible to formulate a regular expression  * with lookahead (`&#63;=`) that does not consume the overlapping region.  *  * {{{  * val madhatter = "(h)(?=(at[^a]+))".r  * val madhats = (madhatter findAllMatchIn hathaway map {  * case madhatter(x,y) => s"$x$y"  * }).toList          // List(hath, hatth, hattth, hatttt)  * }}}  *  * Attempting to retrieve match information before performing the first match  * or after exhausting the iterator results in [[java.lang.IllegalstateException]].  * See [[scala.util.matching.Regex.MatchIterator]] for details.  *  * @param source The text to match against.  * @return  A [[scala.util.matching.Regex.MatchIterator]] of matched substrings.  * @example  {{{for (words <- """/w+""".r findAllIn "A simple example.") yield words}}}  */  def findAllIn(source: CharSequence) = new Regex.MatchIterator(source, this, groupnames)

  //找到首个匹配项  println(numberPattern.finDFirstIn("99ss java, 222 spark,333 hadoop"))

 //数字和字母的组合正则表达式  val numitemPattern="""([0-9]+) ([a-z]+)""".r  val numitemPattern(num, item)="99 hadoop"

  //数字和字母的组合正则表达式  val numitemPattern="""([0-9]+) ([a-z]+)""".r  val line="93459 spark"  line match{   case numitemPattern(num,blog)=> println(num+"/t"+bLOG)   case _=>println("hahaha...")  } 

 val line="93459h spark"  line match{   case numitemPattern(num,blog)=> println(num+"/t"+blog)   case _=>println("hahaha...")  }

 package kmust.hjr.learningScala19 /**  * Created by Administrator on 2015/10/17.  */ object RegularExpressOps {  def main(args:Array[String]):Unit={  val regex="""([0-9]+)([a-z]+)""".r//"""原生表达  val numPattern="[0-9]+".r  val numberPattern="""/s+[0-9]+/s+""".r  //findAllIn()方法返回遍历所有匹配项的迭代器  for(matchString <- numPattern.findAllIn("99345 Scala,22298 Spark"))   println(matchString)  //找到首个匹配项  println(numberPattern.findFirstIn("99ss java, 222 spark,333 hadoop"))  //数字和字母的组合正则表达式  val numitemPattern="""([0-9]+) ([a-z]+)""".r  val numitemPattern(num, item)="99 hadoop"  val line="93459h spark"  line match{   case numitemPattern(num,blog)=> println(num+"/t"+blog)   case _=>println("hahaha...")  }  } }