Question

我正在阅读文本文件，我希望根据条件获取值。首先，我将采用FELLQ，CELLID = 639，ISMAINBCCH = YES，我现在已经完成了下一个任务，我必须以逗号分隔的方式连接FREQ值，其中CELLID = 639，ISMAINBCCH = NO，所以我想要的输出是24， 28,67。如何实现？

行是

ADD GCELL:CELLID=639, CELLNAME="NR_0702_07021_G1_A", MCC="424", MNC="02", LAC=6112, CI=7021, NCC=6, BCC=0, EXTTP=Normal_cell, IUOTP=Concentric_cell, ENIUO=ON, DBFREQBCCHIUO=Extra, FLEXMAIO=OFF, CSVSP=3, CSDSP=5, PSHPSP=4, PSLPSVP=6, BSPBCCHBLKS=1, BSPAGBLKSRES=4, BSPRACHBLKS=1, TYPE=GSM900_DCS1800, 
......................
.............

ADD GTRX:TRXID=0, TRXNAME="M_RAK_JeerExch_G_1879_18791_A-0", FREQ=81, TRXNO=0, CELLID=639, IDTYPE=BYID, ISMAINBCCH=YES, ISTMPTRX=NO, GTRXGROUPID=2556;
ADD GTRX:TRXID=1, TRXNAME="M_RAK_JeerExch_G_1879_18791_A-1", FREQ=24, TRXNO=1, CELLID=639, IDTYPE=BYID, ISMAINBCCH=NO, ISTMPTRX=NO, GTRXGROUPID=2556;
ADD GTRX:TRXID=5, TRXNAME="M_RAK_JeerExch_G_1879_18791_A-2", FREQ=28, TRXNO=2, CELLID=639, IDTYPE=BYID, ISMAINBCCH=NO, ISTMPTRX=NO, GTRXGROUPID=2556;
ADD GTRX:TRXID=6, TRXNAME="M_RAK_JeerExch_G_1879_18791_A-3", FREQ=67, TRXNO=3, CELLID=639, IDTYPE=BYID, ISMAINBCCH=NO, ISTMPTRX=NO, GTRXGROUPID=2556;

更新

我得到的价值如下所示

using (StreamReader sr = File.OpenText(filename))
{
    while ((s = sr.ReadLine()) != null)
    {
        if (s.Contains("ADD GCELL:"))
        {
            var gtrx = new Gtrx
            {
                CellId = int.Parse(PullValue(s, "CELLID")),
                Freq = int.Parse(PullValue(s, "FREQ")),
                TrxNo = int.Parse(PullValue(s, "TRXNO")),
                IsMainBcch = PullValue(s, "ISMAINBCCH").ToUpper() == "YES",
                TrxName = PullValue(s, "TRXNAME"),

            };

        }
    }

更新

我使用了立面概念，但现在需要花费很多时间。我不确定我是否使用任何错误的逻辑两次我迭代文本文件一个获取常规值和其他获取连接值

 private class Gtrx
    {
        public int Freq { get; set; }
        public int TrxNo { get; set; }
        public string TrxName { get; set; }
        public int CellId { get; set; }
        public bool IsMainBcch { get; set; }
    }

    private class Gcell
    {
        public int CellId { get; set; }
        public string CellName { get; set; }
        public string Mcc { get; set; }
        public int Lac { get; set; }
        public int Ci { get; set; }
    }
    private class GcellGtrx
    {
        public Gcell Gcell { get; set; }
        public Gtrx Gtrx { get; set; }
    }

using (var sr = new StringReader(data))
{
    string line = sr.ReadLine();
    while (line != null)
    {
        line = line.Trim();
        if (line.StartsWith("ADD GCELL:"))
        {
            var gcell = new Gcell
            {
                CellId = int.Parse(PullValue(line, "CELLID")),
                CellName = PullValue(line, "CELLNAME"),
                Ci = int.Parse(PullValue(line, "CI")),
                Lac = int.Parse(PullValue(line, "LAC")),
                Mcc = PullValue(line, "MCC")
            };
            var gcellGtrx = new GcellGtrx();
            gcellGtrx.Gcell = gcell;
            _dictionary.Add(gcell.CellId, gcellGtrx);
        }
        if (line.StartsWith("ADD GTRX:"))
        {
            var gtrx = new Gtrx
            {
                CellId = int.Parse(PullValue(line, "CELLID")),
                Freq = int.Parse(PullValue(line, "FREQ")),
                TrxNo = int.Parse(PullValue(line, "TRXNO")),
                IsMainBcch = PullValue(line, "ISMAINBCCH").ToUpper() == "YES",
DEFINED_TCH_FRQ = null,
                TrxName = PullValue(line, "TRXNAME")
            };

           if (!intarr.Contains(gtrx.CellId))
                            {

                                if (!_dictionary.ContainsKey(gtrx.CellId))
                                {
                                    // No GCell record for this id. Do something!
                                    continue;
                                }
                                intarr.Add(gtrx.CellId);
                                string results = string.Empty;

                                    var result = String.Join(",",
        from ss in File.ReadLines(filename)
        where ss.Contains("ADD GTRX:")
        where int.Parse(PullValue(ss, "CELLID")) == gtrx.CellId
        where PullValue(ss, "ISMAINBCCH").ToUpper() != "YES"
        select int.Parse(PullValue(ss, "FREQ")));
                                    results = result;


                                var gtrxnew = new Gtrx
                                {
                                    DEFINED_TCH_FRQ = results
                                };

                                _dictionary[gtrx.CellId].Gtrx = gtrx;
        }
        line = sr.ReadLine();
    }
}

更新

最后我做到了这一点，我首先使用File将以ADD GTRX开头的行保存到数组中。 Readalllines然后只使用该数组来获取连接字符串而不是存储整个文本文件并获得一些性能改进。

如果我将包含数十万行的文本文件转换为xml，然后从xml文件而不是从文本文件中检索数据，它是否会提高性能？如果我使用数据表和数据集而不是类，这将是一个性能改进？

Answer 1

创建gtrxs集合以存储Gtrx个对象，并将文件中的数据读入gtrxs。然后，您可以使用LINQ（ming需要添加using System.Linq;）来查找符合您要求的Gtrx个对象，并调用Select以获取Freq值列表。获得列表后，只需使用String.Join(",", freqValues)即可构建CSV字符串。

var gtrxs = new List<Gtrx>();

using (StreamReader sr = File.OpenText(filename))
{
    while ((s = sr.ReadLine()) != null)
    {


        if (s.Contains("ADD GCELL:"))
        {

            var gtrx = new Gtrx
                                {
                                    CellId = int.Parse(PullValue(s, "CELLID")),
                                    Freq = int.Parse(PullValue(s, "FREQ")),
                                    TrxNo = int.Parse(PullValue(s, "TRXNO")),
                                    IsMainBcch = PullValue(s, "ISMAINBCCH").ToUpper() == "YES",
                                    TrxName = PullValue(s, "TRXNAME"),

                                };

            gtrxs.Add(gtrx);
        }
    }
}

IEnumerable<int> freqValues = gtrxs.Where(x => x.CellId == 639 && x.IsMainBcch == false).Select(x => x.Freq);
string result = String.Join(",", freqValues);

Answer 2

这对你有用吗？

var result = String.Join(",", 
    from s in File.ReadAllLines(filename)
    where s.Contains("ADD GCELL:")
    where int.Parse(PullValue(s, "CELLID")) == 639
    where PullValue(s, "ISMAINBCCH").ToUpper() != "YES"
    select int.Parse(PullValue(s, "FREQ")));

如何在c＃中将值连接到逗号分隔值

2 个答案: