在 C# 中的另一个字符串中查找多个值和字符串

Question

所以我有这个有 4 行的字符串：id  score ping guid       name            lastmsg address               qport  rate--- ----- ---- ---------- --------------- ------- --------------------- ------ -----  1     11  45 176387877  Player 1        3250    101.102.103.104:555   3647   25000  2     23  61 425716719  Player 2        3250    105.106.107.108:555   5978   25000我怎样才能“提取”所有这些值？比如，我想保存“id”、“score”、“ping”、“guid”、“name”等。我玩过在这里找到的“GetBetween”功能。我也尝试学习 string.Split 函数。但我认为我没有接近我想要存档的内容，而且我还不太了解拆分字符串。我基本上需要删除值之间的所有“”空格，问题是值长度可能会改变，例如“名称”。有人可以给我一个如何提取值的例子吗？

Answer 1

RegEx.Split是你的朋友，这很好用。

void Main()

{

    // fun fact, the @ in front of the string means it's literal, so you

    // literally get the new lines

    var input = 

    @"id  score ping guid       name            lastmsg address               qport  rate

-- - -------------------------------------------------------------------------

  1     11  45 176387877  Player 1        3250    101.102.103.104:555   3647   25000

  2     23  61 425716719  Player 2        3250    105.106.107.108:555   5978   25000";

    //Gets you each line

    var lines = input.Split('\n');

    // Skip 2 because I doubt you care about the column title 

    // or the row with the dashes

    foreach (var line in lines.Skip(2)) 

    {

      // For each line, Regex split will return an array with each entry

      // Set a breakpoint with the debugger and inspect to see what I mean.

      // Splits using regex - assumes at least 2 spaces between items 

      // so space in 'Player 1' is handled it's a fickle solution though

      // Trim the line before RegEx split to avoid extra data in the split

       var r = Regex.Split(line.Trim(), @"\s{2,}"); 

    }

}

Answer 2

您可以使用 Regex 和命名组来执行此操作。

样本输入

    var str = @"id  score ping guid       name            lastmsg address               qport  rate

--- ----- ---- ---------- --------------- ------- --------------------- ------ -----

  1     11  45 176387877  Player 1        3250    101.102.103.104:555   3647   25000

  2     23  61 425716719  Player 2        3250    105.106.107.108:555   5978   25000";

正则表达式定义

var regex = new Regex(@"^(?<id>[\d]+)(\s{2,})(?<score>[\d]+)(\s{2,})(?<ping>[\d]+)(\s{1,})(?<guid>[\d]+)(\s{2,})(?<name>([\w]+\s[\w]+))(\s{2,})(?<lastmsg>[\d]+)(\s{2,})(?<ip>[\d.:]+)(\s{2,})(?<port>[\d]+)(\s{2,})(?<rate>[\d]+)$",RegexOptions.Compiled);

解析代码

var lines = str.Split(new []{Environment.NewLine},StringSplitOptions.RemoveEmptyEntries);

foreach(var line in lines)

{

    var match = regex.Match(line.Trim());

    if(!match.Success) continue;

    Console.WriteLine($"ID = {match.Groups["id"].Value}");

    Console.WriteLine($"Score = {match.Groups["score"].Value}");

    Console.WriteLine($"Ping = {match.Groups["ping"].Value}");

    Console.WriteLine($"Guid = {match.Groups["guid"].Value}");

    Console.WriteLine($"Name = {match.Groups["name"].Value}");

    Console.WriteLine($"Last Msg = {match.Groups["lastmsg"].Value}");

    Console.WriteLine($"Port = {match.Groups["port"].Value}");

    Console.WriteLine($"Rate = {match.Groups["rate"].Value}");

}

输出

ID = 1

Score = 11

Ping = 45

Guid = 176387877

Name = Player 1

Last Msg = 3250

Port = 3647

Rate = 25000

ID = 2

Score = 23

Ping = 61

Guid = 425716719

Name = Player 2

Last Msg = 3250

Port = 5978

Rate = 25000