Question

如何检查line.Contains（＆＃34; One＆＃34;）多个字符串？例如，select文件如何包含文本元素＆＃34; name＆＃34;列表。

private void button_Click(object sender, RoutedEventArgs e)
{
  List<string> names = new List<string>() { "One", "Two", "Three" };

  try
  {
    var files = from file in Directory.EnumerateFiles(@"D:\Logs\", "*.log", SearchOption.AllDirectories)
                from line in File.ReadLines(file)
                where line.Contains("One")
                select new
                {
                  File = file,
                  Line = line
                };

    foreach (var f in files)
    {
      Debug.WriteLine("{0}\t{1}", f.File, f.Line);
    }
    //MessageBox.Show(files.Count().ToString() + " record found.");
    }
  catch (UnauthorizedAccessException UAEx)
  {
    Console.WriteLine(UAEx.Message);
  }
  catch (PathTooLongException PathEx)
  {
    Console.WriteLine(PathEx.Message);
  }
}

Answer 1

var files = from file in Directory.EnumerateFiles(@"D:\Stary komp\Logi\Logs2\", "*.log", SearchOption.AllDirectories)
            from line in File.ReadLines(file)
            where names.Any(name => line.Contains(name))
            select new
            {
              File = file,
              Line = line
            };

Answer 2

您可以尝试使用以下内容：

line.Intersect(names).Any()

虽然，我不确定它是否在Linq表达式中有效？

C＃Linq。包含字符串列表

2 个答案: