新手Scala语言中怎么较紧凑地实现从String数组到Double数组的转换

Question

如题所述

Answer 1

（这种极朴素的代码如下）

val strArray: Array[String]

// here are some codes that read strings from a file to the strArray

val doubleArray: Array[Double] = new Array[Double](strArray.length)

var i=0

for(eachstr <- strArray) {doubleArray(i) = eachstr.toDouble; i+=1}