[英]Visual Basic 2d array from .dat file
所以我试图从两个文本文件中提取一些数据。 第一个加载并完美填充列表框。 第二个文本文件是我遇到麻烦的地方。 我似乎无法正确加载它。 我正在尝试将其放入2D数组MileageAr。 该消息框用于解决它是否正确加载到阵列中的问题。 我究竟做错了什么?
来自SDMileage.dat的样本数据
1,54,465,58,488,484
5,54,654,87,841,844
等等....
Public Class ArrayFun
Dim MileageAr(10, 10) As String
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim State As New System.IO.StreamReader("SDCities.dat")
Dim strState As String
Dim i, j As Integer
Do While State.Peek <> -1
strState = State.ReadLine
lstFrom.Items.Add(strState)
lstTo.Items.Add(strState)
Loop
Dim Mileage As New System.IO.StreamReader("SDMileage.dat")
Dim strLine As String
Dim strSplit() As String
Do While State.Peek <> -1
strLine = Mileage.ReadLine
strSplit = strLine.Split(",")
j = 0
For Each miles In strSplit
MileageAr(i, j) = miles
j += 1
Next
i += 1
Loop
State.Close()
Mileage.Close()
End Sub
Private Sub lstTo_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lstTo.SelectedIndexChanged
MsgBox(MileageAr(1, 1))
End Sub
末级
Dim Mileage As New System.IO.StreamReader("SDMileage.dat")
Dim strLine As String
Dim strSplit() As String
将此更改为Mileage.Peek
Do While State.Peek <> -1
strLine = Mileage.ReadLine
strSplit = strLine.Split(",")
尝试以这种方式循环
Dim Mileage As System.IO.TextReader = New StreamReader("SDMileaage.dat")
do while ((strline = Mileage.ReadLine) <> nothing)
Peek方法可能很好,我在处理文本文件时通常只使用上面的代码,可能值得一试...
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