Question

我在此处制作个人资料之前先搜索了一下，试图缓解上述两个问题。

这是为了评估目的，我从一个网站上获得一个CSV文件，其中包含邻居房屋价格列表以及这些房产建造的年份。格式化为货币的价格列是另一种。代码的目的是在文本文件中返回建造年份和价格的高，低和平均值。通过手动将价格列格式化为常规并搜索异常的年份构建值（即一年构建的0或971），我可以得到我想要的结果。我必须将货币格式更改为常规才能使代码生效。我想通过执行异常值的过滤和代码中的格式化（如果可能）来简化过程。

这是我到目前为止所做的：

using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace Prodominate_Values
{
    class Program
    {
        static void Main(string[] args)
        {
            args = new[] { "C:/Users/Yeti/Desktop/Firm_Inventory.csv" };

            var transactions = ReadTransactions(args[0]);

            var averagePrice = CalculateAveragePrice(transactions);
            var averageYear = CalculateAverageYear(transactions);

            var lowPrice = transactions.Min(Transactions => Transactions.Price);
            var highPrice = transactions.Max(Transactions => Transactions.Price);
            var lowYear = transactions.Min(Transactions => Transactions.YearBuilt);
            var highYear = transactions.Max(Transactions => Transactions.YearBuilt);

            string[] lines = { lowPrice + " " + lowYear, highPrice + " " + highYear, averagePrice + " " + averageYear };
            File.WriteAllLines(@"C:/Users/Yeti/Desktop/Firm_Inventory.txt", lines);
            Console.WriteLine("Operation Completed");
            Console.ReadLine();

        }

        static IList<Transaction> ReadTransactions (string path)
        {
            var list = new List<Transaction>();
            foreach (var line in File.ReadLines(path).Skip(1))
            {
                Console.WriteLine(line);
                list.Add(Transaction.FromLine(line));
            }

            return list;
        }

        static int CalculateAveragePrice(IEnumerable<Transaction> transactions)
        {
            var count = 0;
            var total = 0;

            foreach (var transaction in transactions)
            {
                count += 1;
                total += transaction.Price;
            }
            return total / count;
        }

        static int CalculateAverageYear(IEnumerable<Transaction> transactions)
        {
            var count = 0;
            var total = 0;

            foreach (var transaction in transactions)
            {
                count += 1;
                total += transaction.YearBuilt;
            }
            return total / count;
        }
        class Transaction
        {
            public int Price { get; set; }
            public int YearBuilt { get; set; }

            public static Transaction FromLine(string line)
            {
                var data = line.Split(',');
                Console.WriteLine(Convert.ToString(int.Parse(data[1])));

                return new Transaction()
                {
                    Price = int.Parse(data[0]),
                    YearBuilt = int.Parse(data[1]),
                };
            }
        }
    }
}

从导入的CSV文件中筛选出低值，从程序中的CSV文件中删除货币格式

0 个答案: