我有一个.txt文件，其中包含世界上所有机场的信息。我需要使用C＃来读取每个机场的一些参数。
在.txt文件中，格式如下：
Airport ZSPD Latitude... Longitude...
...(multiple lines)
(one blank line here)
...(multiple lines)
(another blank line here)
Airport ZSSS Latitude... Longitude...
...
现在我需要提取一个机场的段落来阅读。有任何想法吗？谢谢！
一个完整的例子是这样的:(以前它已超过600行，我用＆＃34取代了类似的行; ......＆＃34;）
Airport KPAE :N47:54:22.8182 W122:16:53.6295 606ft
Country Name="United States"
State Name="Washington"
City Name="Everett"
Airport Name="Snohomish Co"
in file: Scenery\0101\scenery\APX15140.bgl
Runway 16R/34L centre: N47:54:32.3097 W122:17:08.1038 606ft
Start 16R: N47:55:15.2970 W122:17:09.0664 606ft Hdg: 179.1T, Length 9004ft
Computed start 16R: Lat 47.921322 Long -122.285860
Start 34L: N47:53:49.3225 W122:17:07.1430 606ft Hdg: 359.1T, Length 9004ft
Computed start 34L: Lat 47.896626 Long -122.285307
Hdg: 179.140 true (MagVar 19.700), Asphalt, 9004 x 150 ft
Primary ILS ID = IPAE
Primary ILS: IPAE 109.30 Hdg: 179.1 , Flags: GS BC "ILS 16R"
*** Runway *** KPAE0162 Lat 47.921322 Long -122.285858 Alt 606 Hdg 159 Len 9004 Wid 150 ILS 109.30, Flags: GS BC
*** Runway *** KPAE0341 Lat 47.896626 Long -122.285309 Alt 606 Hdg 339 Len 9004 Wid 150
Runway 11 /29 centre: N47:54:21.4900 W122:16:47.8649 606ft
Start 11 : N47:54:36.4886 W122:17:10.8542 606ft Hdg: 134.2T, Length 4508ft
Computed start 11 : Lat 47.910278 Long -122.286575
Start 29 : N47:54:06.4915 W122:16:24.8759 606ft Hdg: 314.2T, Length 4508ft
Computed start 29 : Lat 47.901657 Long -122.273346
Hdg: 134.180 true (MagVar 19.700), Asphalt, 4508 x 75 ft
*** Runway *** KPAE0110 Lat 47.910278 Long -122.286575 Alt 606 Hdg 114 Len 4508 Wid 75
*** Runway *** KPAE0290 Lat 47.901657 Long -122.273346 Alt 606 Hdg 294 Len 4508 Wid 75
Runway 16L/34R centre: N47:54:08.3055 W122:16:17.9493 606ft
Start 16L: N47:54:22.6238 W122:16:18.1134 606ft Hdg: 179.6T, Length 2997ft
Computed start 16L: Lat 47.906414 Long -122.271699
Start 34R: N47:53:53.9872 W122:16:17.7866 606ft Hdg: 359.6T, Length 2997ft
Computed start 34R: Lat 47.898197 Long -122.271605
Hdg: 179.560 true (MagVar 19.700), Asphalt, 2997 x 75 ft
*** Runway *** KPAE0161 Lat 47.906414 Long -122.271698 Alt 606 Hdg 160 Len 2997 Wid 75
*** Runway *** KPAE0342 Lat 47.898197 Long -122.271606 Alt 606 Hdg 340 Len 2997 Wid 75
COM: Type=10 (CENTRE), Freq=128.50, Name="SEATTLE"
COM: Type=13 (ASOS), Freq=128.65, Name=""
...
Taxipoint #0, type 5 (?): N47:54:07.1069 W122:16:23.6608 -- Forward
Taxipoint #1, type 5 (?): N47:54:07.1069 W122:16:28.0026 -- Reverse
...
Parking Park1 [#G0]: N47:54:10.2492 W122:16:42.0037
Type 2 (GA Ramp Small), Size 10.0m, Hdg 225.1T
Parking Park2 [#G1]: N47:54:09.2126 W122:16:40.5185
Type 3 (GA Ramp Medium), Size 14.0m, Hdg 225.1T
...
Gate P11 [#G7]: N47:55:09.3365 W122:16:49.9781
Type 10 (Heavy Gate), Size 36.0m, Hdg 90.0T
Gate P10 [#G8]: N47:55:03.7646 W122:16:50.0650
Type 9 (Medium Gate), Size 23.0m, Hdg 90.0T
...
Parking Park8 [#G14]: N47:53:50.9422 W122:16:43.1112
Type 3 (GA Ramp Medium), Size 14.0m, Hdg 179.1T
Parking Park9 [#G15]: N47:53:50.8774 W122:16:47.3646
Type 3 (GA Ramp Medium), Size 14.0m, Hdg 179.1T
...
Gate G12 [#G19]: N47:54:00.1422 W122:16:45.1389
Type 8 (Small Gate), Size 18.0m, Hdg 90.7T
Gate G13 [#G20]: N47:54:00.1422 W122:16:55.6108
Type 9 (Medium Gate), Size 23.0m, Hdg 270.0T
...
Parking Park13 [#G34]: N47:54:15.4971 W122:16:47.2985
Type 12 (?), Size 16.0m, Hdg 314.7T
Parking Park14 [#G35]: N47:54:13.6830 W122:16:42.5816
Type 3 (GA Ramp Medium), Size 14.0m, Hdg 43.6T
...
Taxipath (Name #0): Type 3 (Parking), Start#=24, End#=G0, Wid=21.34m
Taxipath (Name #0): Type 3 (Parking), Start#=25, End#=G1, Wid=21.34m
...
Taxiname: #0 =
Taxiname: #1 = A1
...
TaxiWay : G0-24-25-G1
TaxiWay : G2-26-81-80-79-1-78
...
FSM A/P KPAE, lat=47.906342, long=-122.281563, alt=606
我需要阅读的是机场ID，每个跑道，登机口和停车场（一些机场没有盖茨和停车场）的高度，纬度，经度和Hdg，每条跑道的长度和ILS。
我需要将它们读入DataTable - 因此，每个跑道，登机口和停车场的信息占据DataTable中的1行。
我应该使用哪种方式提取我想要的数据，并在此.txt文件中区分机场与其他机场？我需要一些想法。非常感谢你！
答案 0 :(得分：0)
最佳方法是将文本文件转换为更好的格式化文件类型，例如.xml
String[] data = File.ReadAllLines("yourTextFileName.txt");
XElement root = new XElement("root",
from item in data
select new XElement("Line",item));
root.Save("SaveFileName.Xml");
然后阅读XML标签
var xmlStr = File.ReadAllText("SaveFileName.xml");
var str = XElement.Parse(xmlStr);
var result = str.Elements("word").Where(x => x.Element("Airportname").Value.Equals("Hethro")).ToList();
Console.WriteLine(result);
答案 1 :(得分：0)
我的方法是使用这样的正则表达式：
var txt = @"Airport ZSPD Latitude... Longitude...
...(multiple lines)
...(multiple lines)
...(multiple lines)
...(multiple lines)
...(multiple lines)
Airport ZSPD Latitude... Longitude...
...(multiple lines)
...(multiple lines)
...(multiple lines)
...(multiple lines)
...(multiple lines)";
var result =
Regex.Matches(
txt,
@"^airport\s+(?<ap>\S+)\s+(?<lat>\S+)\s+(?<lng>\S+)\s+(?<p1>[\s\S]+?)^\s*$(?<p2>[\s\S]+?)(^\s*$|(?!\s)$)",
RegexOptions.Multiline | RegexOptions.IgnoreCase | RegexOptions.CultureInvariant)
.OfType<Match>()
.Select(
c =>
new
{
Airport = c.Groups["ap"].Value,
Latitude = c.Groups["lat"].Value,
Longitude = c.Groups["lng"],
Paragraph1 = c.Groups["p1"],
Paragraph2 = c.Groups["p2"]
})
.ToList();
foreach (var item in result)
{
Console.WriteLine(item);
}