c# - 计算特定字符串组合的行数

Question

我正在数数没有。 ProductServices 和 Add Product 出现的行数。

日志是:

INFO [ProductServices] Add Product has been performed by gulanand on product with id 424 () INFO [ProductServices] Add Product has been performed by gulanand on product with id 424 () INFO [ProductServices] Add Product has been performed by gulanand on product with id 424 () INFO [ProductServices] Update Product has been performed by gulanand on product with id 424 () INFO [ProductServices] Update Product has been performed by gulanand on product with id 424 () INFO [ProductServices] Add Product has been performed by gulanand on product with id 424 () INFO [ProductServices] Add Product has been performed by gulanand on product with id 424 () INFO [ProductServices] Add Product has been performed by gulanand on product with id 424 ()

我试过的代码是:

IEnumerable<string> textLines =
    Directory.GetFiles(@"C:\Users\karansha\Desktop\Ashish Logs\", "*.*")
                        .Select(filePath => File.ReadAllLines(filePath))
                        .SelectMany(line => line);

List<string> users = new List<string>();

Regex r = new Regex(@"*ProductServices\sAdd Product");
foreach (string Line in textLines)
{
    if (r.IsMatch(Line))
    {
        users.Add(Line);
    }
}
//string[] textLines1 = new List<string>(users).ToArray();
int countlines = users.Count();
Console.WriteLine("ProductsCreated=" + countlines);

Answer 1

这是你想要的吗？

 int count = File.ReadAllLines().Count(x=>x.Contains("MONKEY"));

Linq 是 Luvly!