如何将对象数组转换为双数组

问题描述

我有一个字符串，我想使用正则表达式来挑选值。我需要将生成的匹配集合传输到数组并将数据类型更改为Double。我遇到的挑战是将对象数组转换为双数组。这可能吗？如果是的话，我该如何去做？

 Imports System.Text.RegularExpressions 
 
 Dim ValStr As String 
 ValStr = 0 = 1,1 = 4,2 = 3,3 = 2,4 = 7
 Dim pattern As String =（[0-9] +）（？= \，）|（[0 -9] + $）
 Dim re As New Regex（模式）
 Dim mc As MatchCollection 
 Dim mcArr（）As Object 
 Dim ValArr（）As Double 
 
 mc = re.Matches（ValStr）
 ReDim mcArr（mc.Count-1）
 mc.CopyTo（mcArr，0）

是否有代码可以将mcArr的元素转换为Double并存储为新的Double数组？

解决方案

I have a string that I want to pick off values using a regular expression. I need to transfer the resulting match collection to an array and change the data type to Double. The challenge I am having is converting an Object Array to a Double Array. Is this possible? If it is, how would I go about doing it?

Imports System.Text.RegularExpressions

Dim ValStr As String
ValStr = "0=1,1=4,2=3,3=2,4=7"
Dim pattern As String = "([0-9]+)(?=\,)|([0-9]+$)"
Dim re As New Regex(pattern)
Dim mc As MatchCollection
Dim mcArr() As Object
Dim ValArr() As Double

mc = re.Matches(ValStr)
ReDim mcArr(mc.Count-1)
mc.CopyTo(mcArr,0)

Is there code I can put here to convert the elements of mcArr to Double and store as a new Double Array?

解决方案

这篇关于如何将对象数组转换为双数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！