Question

我有一些不同的输入字符串，例如

string text1 = "Slave 1, Board 3, Point 1, Port 1";
string text2 = "Slave 1, Board 4, Point 1, Port 1";
string text3 = "Slave 1, Board 5, Point 1, Port 1";
string text4 = "Slave 1, Board 6, Point 1, Port 1";
string text5 = "Slave 1, Board 7, Point 4, Port 1";
string text6 = "Slave 1, Board 10, Point 4, Port 1";

我需要从每个字符串中删除“Board X”值。怎样才能做到这一点？

文本板后的数字可以不同，但名称是静态的。

我写了这样的代码，但似乎不起作用

List<String> Items = pointPortPath.Split(',').Select(i => i.Trim()).Where(i => i != string.Empty).ToList(); 

Items.Remove(Items.Where(p=>p.StartsWith("Board")).ToString());

Answer 1

您可以为此使用正则表达式：

text1 = System.Text.RegularExpressions.Regex.Replace(text1 ,@"\b(Board) \d\b","");

Answer 2

俗话说：“如果您有一个问题，并且您尝试使用 Regex 解决它，那么现在您有两个问题” - 因此，避免使用 Regex，这里有一个可能适合您的解决方案。

using System;
using System.Linq;
                    
public class Program
{
    public static void Main()
    {
        string text1 = "Slave 1, Board 3, Point 1, Port 1";
        string text2 = "Slave 1, Board 4, Point 1, Port 1";
        string text3 = "Slave 1, Board 5, Point 1, Port 1";
        string text4 = "Slave 1, Board 6, Point 1, Port 1";
        string text5 = "Slave 1, Board 7, Point 4, Port 1";
        string text6 = "Slave 1, Board 10, Point 4, Port 1";
        
        Console.WriteLine(DeleteBoardFromString(text1));
        Console.WriteLine(DeleteBoardFromString(text2));
    }
    
    public static string DeleteBoardFromString(string input, bool trimWhitespace = true)
    {
        IEnumerable<string> output = input
            .Split(',')
            .Select(str => trimWhitespace ? str.Trim() : str)
            .Where(str => !str.StartsWith("Board"));

        return string.Join(", ", output);
    }
}

输出

<块引用>

从设备 1，点 1，端口 1

Answer 3

试试这个 Board 的正则表达式后跟任意数字

string target=System.Text.RegularExpressions.Regex.Replace(text1, "Board [0-9]+, ", "");

Answer 4

正则表达式

using System;
using System.Text.RegularExpressions;

public class Example
{
    public static void Main()
    {
        string pattern = @"Board\s\d+,";
        string substitution = @"";
        string input = @"Slave 1, Board 3, Point 1, Port 1
Slave 1, Board 4, Point 1, Port 1
Slave 1, Board 5, Point 1, Port 1
Slave 1, Board 6, Point 1, Port 1
Slave 1, Board 7, Point 4, Port 1
Slave 1, Board 10, Point 4, Port 1";
        RegexOptions options = RegexOptions.Multiline;
        
        Regex regex = new Regex(pattern, options);
        string result = regex.Replace(input, substitution);
    }
}

Answer 5

它与

List<String> Items = pointPortPath.Split(',').Select(i => i.Trim()).Where(i => i != string.Empty).ToList(); 

Items.Remove(x=>x.StartsWith("Board"));

感谢大家的帮助！

从逗号分隔的字符串 C# 中删除某些字符串

5 个答案: