VB.NET 读取PM文件并提取字符数据

{"title":"VB.NET 读取PM文件并提取字符数据","description":"本文介绍了使用VB.NET代码从PM文件中读取特定行和列的字符数据，并将其存储在一个二维数组中。代码会从文件第4行开始，每隔3行读取一行7个字符，并过滤掉制表符和空格。最终用户可以通过索引访问二维数组中的字符数据。","keywords":"VB.NET, PM文件读取, 字符提取, 二维数组, 文件处理","content":""Imports System.IO\n\nModule Module1\n Sub Main()\n Dim filePath As String = "C:\path\to\your\file.txt" ' 替换为你的文件路径\n Dim data As New List(Of String())()\n\n Using sr As New StreamReader(filePath)\n Dim lineCount As Integer = 0\n Dim line As String = sr.ReadLine()\n\n While line IsNot Nothing AndAlso Not line.Trim().Equals("0")\n lineCount += 1\n\n If lineCount >= 4 AndAlso lineCount Mod 3 = 1 Then\n Dim filteredLine As String = FilterLine(line)\n data.Add(SplitLine(filteredLine))\n End If\n\n line = sr.ReadLine()\n End While\n End Using\n\n ' 输出2维数据\n For i As Integer = 0 To data.Count - 1\n For j As Integer = 0 To data(i).Length - 1\n Console.WriteLine("2维数据第{0}行第{1}个字符：{2}", i + 1, j + 1, data(i)(j))\n Next\n Next\n\n Console.ReadLine()\n End Sub\n\n ' 过滤制表符和空格\n Function FilterLine(line As String) As String\n Return line.Replace(vbTab, "").Replace(" ", "")\n End Function\n\n ' 将一行字符串拆分为字符数组\n Function SplitLine(line As String) As String()\n Return line.ToCharArray().Select(Function(c) c.ToString()).ToArray()\n End Function\nEnd Module\n\n你需要将上述代码中的filePath变量替换为你的文件路径。代码会从第4行开始读取一行7个字符，之后每隔3行读取一行的7个字符，直到最后一行都为0。读取的数据将存储在一个二维数据中。你可以根据需要查阅二维数据的特定行和列的字符值。\n\n注意，上述代码假定每行都有足够的字符和行数以满足条件。如果文件中的行数和字符数不足以满足条件，代码可能会引发异常。你可以根据需要添加适当的错误处理。"}