我的项目有问题，让我在这里解释一下，我需要一些专家指导，因为我是编程的新手。 我在记事本中有这样的数据：
10192 20351 30473 40499 50449 60234
10192 20207 30206 40203 50205 60226
10192 20252 30312 40376 50334 60252
这是26行数据，但我只是举例说明了3行。这里有一些规则按优先顺序排序：
- 我只想读取文本文件然后提取数字。例如：10192 20351等等。
- 我有6列ListView，我想在它的列
中显示每一行数字第1栏|第2栏|第3栏|第4栏|第5栏|第6栏
10192 | 20351 | 30473 | 40499 |50449 | 60234
-off course如果可能的话，每个5位数的前2位数是唯一的代码，我想要的只是最后一位数。例如：192 351 473 499 234.因此每个数字的修正值为10.000。
我想我很混淆你们，对不起，这是我现在的代码
private delegate void UpdateUiTextDelegate（String Text）; private void serial_DataRecieved（object sender，System.IO.Ports.SerialDataReceivedEventArgs e） { //将收到的字符收集到我们的'缓冲区'（字符串）。 string received_data; received_data = serial.ReadExisting（）; Dispatcher.Invoke（DispatcherPriority.Send，new UpdateUiTextDelegate（WriteData），received_data）; }
private void WriteData(String Text)
{
if (bufferData != "" || Text[0] == '1')
bufferData += Text;
if (bufferData.Length >= 35)
{
using (System.IO.StreamWriter file = new System.IO.StreamWriter(@"C:\Users\Rads\Desktop\Training06.txt", true))
{
file.WriteLine(bufferData);
}
listBox1.Items.Add(bufferData);
bufferData = "";
}
}
#endregion
private void Window_Loaded(object sender, RoutedEventArgs e)
{
}
//Browse .txt file
private void Browse_btn_Click(object sender, RoutedEventArgs e)
{
Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();
dlg.DefaultExt = ".txt";
dlg.Filter = "Text document (.txt)|*.txt";
Nullable<bool> result = dlg.ShowDialog();
if (result == true)
{
string filename = dlg.FileName;
textBox.Text = filename;
}
}
private void Parsing_String(string filename)
{
List<Row> list = new List<Row>();
foreach (String str in File.ReadLines(filename))
{
String[] strCols = str.Split(Convert.ToChar(" "));
list.Add(new Row()
{
Column1 = strCols[0].Substring(2),
Column2 = strCols[1].Substring(2),
Column3 = strCols[2].Substring(2),
Column4 = strCols[3].Substring(2),
Column5 = strCols[4].Substring(2),
Column6 = strCols[5].Substring(2),
});
}
dg.ItemsSource = list;
}
public class Row
{
public string Column1 { get; set; }
public string Column2 { get; set; }
public string Column3 { get; set; }
public string Column4 { get; set; }
public string Column5 { get; set; }
public string Column6 { get; set; }
}
XAML代码
<Window x:Class="SamplingData.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="368" Width="401" Loaded="Window_Loaded">
<TabControl Height="332" HorizontalAlignment="Left" Name="tabControl1" VerticalAlignment="Top" Width="380">
<TabItem Header="Sampling" Name="Sampling">
<Grid>
<Label Content="DATA RECEIVED" Height="28" HorizontalAlignment="Left" Margin="6,6,0,0" Name="label1" VerticalAlignment="Top" />
<Button Content="Connect" Height="23" HorizontalAlignment="Left" Margin="264,6,0,0" Name="ConnectButton" VerticalAlignment="Top" Width="75" Click="Connect_Comms" />
<ListBox Height="222" HorizontalAlignment="Left" Margin="10,37,0,0" Name="listBox1" VerticalAlignment="Top" Width="329" />
</Grid>
</TabItem>
<TabItem Header="Training" Name="tabItem1">
<Grid>
<Button Content="Training" Height="23" HorizontalAlignment="Left" Margin="243,28,0,0" Name="Train_Btn" VerticalAlignment="Top" Width="75" />
<Button Content="Browse" Height="23" HorizontalAlignment="Left" Margin="243,6,0,0" Name="Browse_btn" VerticalAlignment="Top" Width="75" Click="Browse_btn_Click" />
<TextBox Height="23" HorizontalAlignment="Left" Margin="6,7,0,0" Name="textBox" VerticalAlignment="Top" Width="231" Background="{x:Null}"></TextBox>
<RadioButton Content="RadioButton" Height="16" HorizontalAlignment="Left" Margin="507,76,0,0" Name="radioButton1" VerticalAlignment="Top" />
<DataGrid x:Name="dg" AutoGenerateColumns="False" Margin="0,57,0,0" DataContext="{Binding}">
<DataGrid.Columns>
<DataGridTextColumn Binding="{Binding Column1}" Header="Column 1"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding Column2}" Header="Column 2"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding Column3}" Header="Column 3"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding Column4}" Header="Column 4"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding Column5}" Header="Column 5"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding Column6}" Header="Column 6"></DataGridTextColumn>
</DataGrid.Columns>
</DataGrid>
</Grid>
</TabItem>
</TabControl>
非常感谢有人可以帮助我..
答案 0 :(得分：2)
我认为你根本不需要正则表达式。你只需要按行和空格string.Split。
string[] lines = data.Split(Enviroment.NewLine);
对于每一行，您可以通过按空格分割线来获取字段。
string[] fields = line.Split(' ');
答案 1 :(得分：1)
编辑：根据Ash建议添加行变量：
鉴于您没有指定要写入数据的对象，我认为它是一个名为Row的数据行：
private void Parsing_String(string filename)
{
DataTable dt = CreateDataTable();
foreach (String str in File.ReadLines(filename))
{
String[] strCols = str.Split(Convert.ToChar(" "));
DataRow Row = dt.NewRow(); //Where dt is a DataTable
for (int i =0; i < strCols.length; i++)
{
Row[i] = strCols[i].Substring(2); //This will start reading from the third character
}
dt.Rows.Add(Row);
}
listView1.ItemsSource = dt.Rows;
}
//**EDIT**: Just in case you don't have a datatable and you want to create a small one:
public DataTable CreateDataTable()
{
DataTable dt = new DataTable();
new string[] { "Column 1", "Column 2", "Column 3", "Column 4", "Column 5", "Column 6" }
.ToList()
.ForEach(c => { dt.Columns.Add(new DataColumn(c)); });
return dt;
}
编辑：上次尝试（忽略上面的代码）：
private void Parsing_String(string filename)
{
List<Row> list = new List<Row>();
foreach (String str in File.ReadLines(filename))
{
String[] strCols = str.Split(Convert.ToChar(" "));
list.Add(new Row()
{
Column1 = strCols[0].Substring(2),
Column2 = strCols[1].Substring(2),
Column3 = strCols[2].Substring(2),
Column4 = strCols[3].Substring(2),
Column5 = strCols[4].Substring(2),
Column6 = strCols[5].Substring(2)
});
}
dg.ItemsSource = list;
}
public class Row
{
public string Column1 { get; set; }
public string Column2 { get; set; }
public string Column3 { get; set; }
public string Column4 { get; set; }
public string Column5 { get; set; }
public string Column6 { get; set; }
}
然后在你的xaml中：
如果要指定自定义标题，则必须更改它，以便它不会自动生成列但使用绑定，即：。
<DataGrid x:Name="dg" AutoGenerateColumns="False">
<DataGrid.Columns>
<DataGridTextColumn Binding="{Binding Column1}" Header="Column 1"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding Column2}" Header="Column 2"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding Column3}" Header="Column 3"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding Column4}" Header="Column 4"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding Column5}" Header="Column 5"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding Column6}" Header="Column 6"></DataGridTextColumn>
</DataGrid.Columns>
</DataGrid>
修改这将计算第一列总数
protected int CalculateFirstColumnTotal(List<Row> list)
{
int total = 0;
foreach (Row row in list)
total += int.Parse(row.Column1);
}
修改：
您永远不会实际调用Parsing_String方法，将以下行添加到browse方法：
private void Browse_btn_Click(object sender, RoutedEventArgs e)
{
//Existing Code
Parsing_String(textBox.Text); //Add this line to the last line of the method.
}
答案 2 :(得分：1)
或许这样的事情：
var result = from row in theFileAsString.Split('\n')
select new {
Columns = row.Split(' ').Select(s => s.Substring(2))
}
您将拥有IEnumerable个项目，每个项目都有一个包含数据字符串的属性Columns。
虽然没有经过考验，但你明白了。
答案 3 :(得分：1)
好吧，这可能有些过分，但你提到你想把数据放到listview（也许是数据网格？），在这种情况下，你可能想要将数据转换成某种对象形式。这实际上取决于你获得数据后实际上要对数据做些什么。
假设一旦你获得了数据，你就会想要操纵它或者用它做更多的事情，试试这样的事情 - 你应该能够把它直接放到一个新的控制台应用程序中运行它
namespace ConsoleApplication6
{
using System;
using System.Collections.Generic;
using System.IO;
using System.Text.RegularExpressions;
class Program
{
static void Main(string[] args)
{
string filename = @"c:\test.txt";
// Because you're working with a small file, we'll just read all the lines into memory
List<LineData> processedLines = new List<LineData>();
foreach (var line in File.ReadAllLines(filename))
{
processedLines.Add(new LineData(line));
}
// Write out the line data to the console to prove that it has been read
foreach (var processedLine in processedLines)
{
Console.WriteLine(
"{0},{1},{2},{3},{4},{5}",
processedLine.Column1,
processedLine.Column2,
processedLine.Column3,
processedLine.Column4,
processedLine.Column5,
processedLine.Column6);
}
}
}
public class LineData
{
public LineData(string line)
{
// Regex basically means find two digits ("Prefix") followed by 3 digits ("Value")
Regex regex = new Regex(@"(?<Prefix>\d{2})(?<Value>\d{3})");
var lineMatches = regex.Matches(line);
if (lineMatches.Count != 6)
{
// You should really be throwing your own exception type...
throw new Exception("Expected 6 columns!");
}
this.Column1 = this.ExtractMatchData(lineMatches[0]);
this.Column2 = this.ExtractMatchData(lineMatches[1]);
this.Column3 = this.ExtractMatchData(lineMatches[2]);
this.Column4 = this.ExtractMatchData(lineMatches[3]);
this.Column5 = this.ExtractMatchData(lineMatches[4]);
this.Column6 = this.ExtractMatchData(lineMatches[5]);
}
private string ExtractMatchData(Match match)
{
return match.Groups["Value"].Value;
}
public string Column1 { get; set; }
public string Column2 { get; set; }
public string Column3 { get; set; }
public string Column4 { get; set; }
public string Column5 { get; set; }
public string Column6 { get; set; }
}
}
答案 4 :(得分：0)
using (var stream = File.Open(this.filename, FileMode.Open, FileAccess.Read)
{
var reader = new StreamReader(stream);
var data = reader.ReadLine();
while (!String.IsNullOrWhitespace(data))
{
string[] columns = data.Split(' ');
Console.WriteLine(string.Format("{0} {1} {2} {3} {4} {5}", columns[0], columns[1],));
data = reader.ReadLine();
}
}
答案 5 :(得分：0)
您不必为此使用正则表达式。
var data = @"10192 20351 30473 40499 50449 60234
10192 20207 30206 40203 50205 60226
10192 20252 30312 40376 50334 60252";
var result = from line in data.Split(new[] { "\r\n", "\n" }, StringSplitOptions.RemoveEmptyEntries)
let splitted = line.Split(new[] {' '}, StringSplitOptions.RemoveEmptyEntries)
select splitted.Select(s => s.Substring(2));
或文件
using System.IO; // In the top
var result = from line in File.ReadLines("path")
let splitted = line.Split(new[] {' '}, StringSplitOptions.RemoveEmptyEntries)
select splitted.Select(s => s.Substring(2));
result现在将包含一系列字符串序列（其中前两个字符被删除）。此版本适用于Unix和Windows换行符。它还会删除可能导致其他答案失败的其他空格。