字符串数组成整数数组？ [英] string array into an integer array?

问题描述

我需要帮助将字符串数组转换为整数数组。我正在读取从文本文件（test.txt）形成数组的值。

i need help converting a string array into an integer array. i'm reading in my values that are forming the array from a text file (test.txt).

推荐答案

有什么问题？对于字符串数组的每个itme，使用 Int32.Parse [ ^ ]（或 TryParse [ ^ ]）将字符串转换为数字并将获得的数字添加到整数数组的方法。

您也可以跳过'fill-the-array-of-strings'步骤并直接生成整数数组。

What is the problem? For each itme of the array of strings use Int32.Parse[^] (or TryParse[^]) method to convert the string into a number and add the obtained number to the integer array.
You may also skip the 'fill-the-array-of-strings' step and produce directly the array of integers.

基本上，你应该创建一个目标类型的数组，并在循环中逐个元素地转换它。但是，在.NET FCL中有一个方便的通用泛型方法，可以在一行代码中完成： http ：//msdn.microsoft.com/en-us/library/exc45z53.aspx [ ^ ]。

-SA

Essentially, you should create an array of the target type and convert it element by element, in a loop. However, there is a convenient universal generic method in .NET FCL, to do it in one line of code: http://msdn.microsoft.com/en-us/library/exc45z53.aspx[^].

—SA

试试这个，

Try This,

Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Dim Readtxt As String = "1,2,3,4,5"
        Dim arrTxt() As String = Split(Readtxt, ",")
        Dim arrLength As Integer = arrTxt.Length
        Dim arrNumber(arrLength - 1) As Integer
        For i As Integer = 0 To arrLength - 1
            arrNumber(i) = Integer.Parse(arrTxt(i))
            
        Next
    End Sub

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