文件txt C＃Console中的Sum变量

Question

我有以txt格式存储的数据，然后显示数据。我想在图片中得到总共QOH，我总体上有问题。

diff <- 1 - rowSums(df)

谢谢！

Answer 1

为您的QOH添加计数器，如下所示：

public void DisTranswe()
    {
        Console.Clear();
        FileStream fs = new FileStream("TransactionHistory\\weekend\\transcationhistory.txt", FileMode.Open, FileAccess.Read);
        StreamReader sr = new StreamReader(fs);
        int sum=0;
        while ((str = sr.ReadLine()) != null)
        {
            string[] data = str.Split('#');
            string id = data[0];
            string date = data[1];
            string qty = data[2];
            string payment = data[3];
            string note = data[4];

            sum=sum+int.Parse(qty);

            //output
            Console.WriteLine("IdTransaksi");
            Console.WriteLine(id);
            Console.WriteLine("DateTransaksi");
            Console.WriteLine(date);
            Console.WriteLine("QOH");
            Console.WriteLine(qty);
            Console.WriteLine("TotalPayment");
            Console.WriteLine(payment);
            Console.WriteLine("Note");
            Console.WriteLine(note);


        }

        Console.WriteLine("SUM");
        Console.WriteLine(sum);
        sr.Close();
        fs.Close();
    }

Answer 2

试试这个：

int qoh =
    File
        .ReadAllLines("TransactionHistory\\weekend\\transcationhistory.txt")
        .Sum(x => int.Parse(x.Split('#')[2]));