Question

使用C＃LINQ在解析字符串中需要帮助我有一个像这样的字符串

11=205129022,453=8,448=CompanyID,447=D,452=63,448=userid,447=D,452=11,448=CompanyName,447=D,452=13,448=W,447=D,452=54,77=O,555=2

我想将此字符串拆分为448=，然后取一个数组开始获取行“以448开头”获取行452=中的最后一个字符串我正在尝试使用LINQ获取最终输出的逻辑，但它不起作用。

var parties = rptstr.Split(new string[] { "453=" }, StringSplitOptions.None).Select(p => p.Split(new string[] {"448="},StringSplitOptions.None);

 var str448 = (from lnprty in parties 
                                   where lnprty.ToString().StartsWith("448=")
                                    //let tmp = line1.ToString() 
                                   select new PartyRoleModel()     
                                     {
                                         companyid == lnprty.Where(s => s.EndsWith("452=63,")).Select(s => s.Substring(s.IndexOf('=') + 1)).FirstOrDefault(),
                     userid == lnprty.Where(s => s.EndsWith("452=11,")).Select(s => s.Substring(s.IndexOf('=') + 1)).FirstOrDefault()  
                     companyname == lnprty.Where(s => s.EndsWith("452=13,")).Select(s => s.Substring(s.IndexOf('=') + 1)).FirstOrDefault() 
                     PhyFlag == lnprty.Where(s => s.EndsWith("452=54,")).Select(s => s.Substring(s.IndexOf('=') + 1)).FirstOrDefault() 
                                     })
                                .ToList();

我可以按448拆分行，但448行没有448=，因为它已经拆分，我还需要在行中拆分字符串，以便我可以识别该行。 PLS。记住最后一行在结尾(448=W,447=D,452=54,77=O,555=2)附带其他字符串。我应该得到最终输出，如452 = 63获得companyid（447 =），452 = 11获取用户ID，452 = 13得到公司名称提前谢谢。

Answer 1

请尝试以下操作：

        const string FILENAME = @"c:\temp\test.txt";
        static void Main(string[] args)
        {
            Dictionary<int, Dictionary<string, int>> dict = new Dictionary<int, Dictionary<string, int>>();

            StreamReader reader = new StreamReader(FILENAME);
            string input = "";
            while ((input = reader.ReadLine()) != null)
            {

                //string input = "11=205129022,453=8,448=CompanyID,447=D,452=63,448=userid,447=D,452=11,448=CompanyName,447=D,452=13,448=W,447=D,452=54,77=O,555=2";
                List<string> strArray = input.Split(new char[] { ',' }).ToList();

                //or dictionary
                Dictionary<string, int> rowDict = strArray.Select(x => x.Split(new char[] { '=' })).GroupBy(x => x.Last(), y => int.Parse(y.First())).ToDictionary(x => x.Key, y => y.FirstOrDefault());

                int id = rowDict["CompanyID"];

                dict.Add(id, rowDict);
            }

        }

使用C＃LINQ解析字符串

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