将数据从 csv 排序为 txt
sort data from csv to txt
我正在编写一个将数据从 csv 整理成 txt 的应用程序。
我已经知道了，但是我无法获得所需的输出。
有人可以帮忙吗，我没看错。
我最初认为是 File.WriteAllLines 出了问题，但即使我写入控制台，我也会得到相同的结果。
我的文件看起来像这样
Georgina,Sinclair,408999703657,cheque,First National Bank,Fourways,275.00,12/01/2012
Zachary,Whitehead,409122372301,cheque,ABSA,Irene,70.25,12/01/2012
Toby,Henderson,401255489873,cheque,First National Bank,Edenvale,181.03,12/13/2012
Katherine,Cooke,409155874935,savings,ABSA,Southdowns,975.89,01/01/2013
Bradley,James,409254998,savings,ABSA,Melville,207.74,12/09/2012
Sophie,Lane,409771987,savings,ABSA,Roodepoort,207.74,12/31/2012
我的输出应该是这样的
First National B0020000045603
GSinclair 408999703657 CH Fourways 002750001122012
THenderson 401255489873 CH Edenvale 001810313122012
ABSA 0040000146162
ZWhitehead 409122372301 CH Irene 000702501122012
KCooke 409155874935 SAVSouthdowns009758901012013
BJames 409254998 SAVMelville 002077409122012
SLane 409771987 SAVRoodepoort002077431122012
我目前的代码只有 returns header 和 2 行，如下所示。
ABSA 0040000146162
KCooke 409155874935 SAVSouthdowns 009758901012013
请协助。
我的代码如下所示
string text = @"C:\Test\output.txt";
var inputEntries = File.ReadLines(@"C:\Test\debitorders.csv").Select(line =>
{
var values = line.Split(',');
return new
{
accountholder = values[0].Trim().Substring(0, 1) + values[1].Trim(),
accountnumber = long.Parse(values[2].Trim()),
accounttype = values[3].Trim(),
bankname = values[4].Trim(),
branch = values[5].Trim(),
amount = 100 * double.Parse(values[6].Trim()),
date = DateTime.Parse(values[7].Trim())
};
});
var banks = inputEntries
.OrderBy(e => e.bankname)
.GroupBy(e => e.bankname, e => e);
foreach (var bank in banks)
{
var AccountName = bank.Key;
if (AccountName.Length >= 20)
{
AccountName = AccountName.Substring(0, 16);
}
else
{
AccountName += new string(' ', 20 - AccountName.Length);
}
var NumberOfAccounts = bank.Count();
var TotalAmount = bank.Select(acc => acc.amount).Sum();
var Header = AccountName + "\t" + NumberOfAccounts.ToString("000") + TotalAmount.ToString("0000000000");
var sortedAccounts = bank
.OrderBy(acc => acc.accountholder)
.OrderByDescending(acc => acc.amount);
foreach (var account in sortedAccounts)
{
var outputLine =
account.accountholder + "\t" +
account.accountnumber + "\t" +
//get first 2 characters
account.accounttype.Substring(0, 3).ToUpper() + account.branch + "\t" + "00" +
account.amount +
account.date.ToString("ddMMyyyy");
for (int i = 0; i < 15; i++)
{
File.WriteAllText(text, Header + Environment.NewLine + outputLine);
Console.WriteLine(Header + outputLine);
Console.ReadLine();
}
}
}
我想我找到了解决方案：
File.AppendAllText(text, Header + Environment.NewLine + outputLine + Environment.NewLine);
使用 File.AppendAllText 而不是 File.WriteAllText。使用 WriteAllText，您总是会删除旧内容。
但是考虑在开始写入之前清理文件 (File.WriteAllText(text, "");)，否则你将在其中包含上次 运行 的旧数据。
尽量使用String.Format("{0,-10}", name)，意思是名字的长度用空格补满，最大长度为10。减号表示左对齐，正数表示右对齐。
我将您的代码更新为：
string text = @"D:\C#\output.txt";
File.WriteAllText(text, "");
var inputEntries = File.ReadLines(@"D:\c#\debitorders.csv").Select(line =>
{
var values = line.Split(',');
return new
{
accountholder = values[0].Trim().Substring(0, 1) + values[1].Trim(),
accountnumber = long.Parse(values[2].Trim()),
accounttype = values[3].Trim(),
bankname = values[4].Trim(),
branch = values[5].Trim(),
amount = 100 * double.Parse(values[6].Trim()),
date = DateTime.ParseExact(values[7].Trim(), "MM/dd/yyyy", CultureInfo.InvariantCulture)
};
});
var banks = inputEntries.OrderBy(e => e.bankname)
.GroupBy(e => e.bankname, e => e);
foreach (var bank in banks)
{
var AccountName = bank.Key;
var NumberOfAccounts = bank.Count();
var TotalAmount = bank.Select(acc => acc.amount).Sum();
var Header = String.Format("{0,-20} {1,-10} {2}", AccountName, NumberOfAccounts.ToString("000"), TotalAmount.ToString("0000000000"));
var sortedAccounts = bank.OrderBy(acc => acc.accountholder)
.OrderByDescending(acc => acc.amount);
File.AppendAllText(text, Header + Environment.NewLine);
Console.WriteLine(Header);
foreach (var account in sortedAccounts)
{
var outputLine = String.Format("{0,-11} {1,15} {2,-3} {3,-10} {4,7} {5,-10}",
account.accountholder,
account.accountnumber,
account.accounttype.Substring(0, 3).ToUpper(),
account.branch,
account.amount,
account.date.ToString("ddMMyyyy")
);
//get first 2 characters
//account.accounttype.Substring(0, 3).ToUpper() + account.branch + "\t" + "00" +
// what are the "00" for? didn't include them you may this do by yourself
File.AppendAllText(text, outputLine + Environment.NewLine);
Console.WriteLine(outputLine);
}
File.AppendAllText(text, Environment.NewLine);
Console.WriteLine();
}
输出为：
ABSA 004 0000146162
KCooke 409155874935 SAV Southdowns 97589 01012013
BJames 409254998 SAV Melville 20774 09122012
SLane 409771987 SAV Roodepoort 20774 31122012
ZWhitehead 409122372301 CHE Irene 7025 01122012
First National Bank 002 0000045603
GSinclair 408999703657 CHE Fourways 27500 01122012
THenderson 401255489873 CHE Edenvale 18103 13122012
更好更简洁的解决方案是使用 List<string> 添加文本。在代码的末尾，只需将列表转换为数组并将所有行写入文件。
List<string> outputLine = new List<string>(); //note this addition to the code
foreach (var bank in banks)
{
//do header formatting stuff here
var Header = somecode
outputLine.Add(Header); //Add Header to outputLine
var sortedAccounts = bank.OrderBy(acc => acc.accountholder)
.OrderByDescending(acc => acc.amount);
foreach (var account in sortedAccounts)
{
var tempStringBuilder =
account.accountholder + "\t" +
account.accountnumber + "\t" +
//get first 2 characters
account.accounttype.Substring(0, 3).ToUpper() + account.branch + "\t" + "00" +
account.amount +
account.date.ToString("ddMMyyyy");
outputLine.Add(tempStringBuilder); //Add tempStringBuilder to outputLine
}
}
File.WriteAllLines("destination path", outputLine.ToArray()); //Write everything to your output file in one go
替代Excel解决方案：
Microsoft Excel 有一个非常强大的工具，叫做 Pivot Tables，它非常适合您的需要。如果您不熟悉它，请阅读一些有关它的教程。起初，这是一个让您了解工作流程以使用它的过程，但是一旦您掌握了它，它就非常简单。您只需拖放要分组的字段。
您可能还想考虑对原始数据使用 Data Connections 到 link，考虑到您拥有的数据集，这也很简单。
我正在编写一个将数据从 csv 整理成 txt 的应用程序。
我已经知道了，但是我无法获得所需的输出。
有人可以帮忙吗，我没看错。
我最初认为是 File.WriteAllLines 出了问题，但即使我写入控制台，我也会得到相同的结果。
我的文件看起来像这样
Georgina,Sinclair,408999703657,cheque,First National Bank,Fourways,275.00,12/01/2012 Zachary,Whitehead,409122372301,cheque,ABSA,Irene,70.25,12/01/2012 Toby,Henderson,401255489873,cheque,First National Bank,Edenvale,181.03,12/13/2012 Katherine,Cooke,409155874935,savings,ABSA,Southdowns,975.89,01/01/2013 Bradley,James,409254998,savings,ABSA,Melville,207.74,12/09/2012 Sophie,Lane,409771987,savings,ABSA,Roodepoort,207.74,12/31/2012
我的输出应该是这样的
First National B0020000045603
GSinclair 408999703657 CH Fourways 002750001122012
THenderson 401255489873 CH Edenvale 001810313122012
ABSA 0040000146162
ZWhitehead 409122372301 CH Irene 000702501122012
KCooke 409155874935 SAVSouthdowns009758901012013
BJames 409254998 SAVMelville 002077409122012
SLane 409771987 SAVRoodepoort002077431122012
我目前的代码只有 returns header 和 2 行，如下所示。
ABSA 0040000146162
KCooke 409155874935 SAVSouthdowns 009758901012013
请协助。
我的代码如下所示
string text = @"C:\Test\output.txt";
var inputEntries = File.ReadLines(@"C:\Test\debitorders.csv").Select(line =>
{
var values = line.Split(',');
return new
{
accountholder = values[0].Trim().Substring(0, 1) + values[1].Trim(),
accountnumber = long.Parse(values[2].Trim()),
accounttype = values[3].Trim(),
bankname = values[4].Trim(),
branch = values[5].Trim(),
amount = 100 * double.Parse(values[6].Trim()),
date = DateTime.Parse(values[7].Trim())
};
});
var banks = inputEntries
.OrderBy(e => e.bankname)
.GroupBy(e => e.bankname, e => e);
foreach (var bank in banks)
{
var AccountName = bank.Key;
if (AccountName.Length >= 20)
{
AccountName = AccountName.Substring(0, 16);
}
else
{
AccountName += new string(' ', 20 - AccountName.Length);
}
var NumberOfAccounts = bank.Count();
var TotalAmount = bank.Select(acc => acc.amount).Sum();
var Header = AccountName + "\t" + NumberOfAccounts.ToString("000") + TotalAmount.ToString("0000000000");
var sortedAccounts = bank
.OrderBy(acc => acc.accountholder)
.OrderByDescending(acc => acc.amount);
foreach (var account in sortedAccounts)
{
var outputLine =
account.accountholder + "\t" +
account.accountnumber + "\t" +
//get first 2 characters
account.accounttype.Substring(0, 3).ToUpper() + account.branch + "\t" + "00" +
account.amount +
account.date.ToString("ddMMyyyy");
for (int i = 0; i < 15; i++)
{
File.WriteAllText(text, Header + Environment.NewLine + outputLine);
Console.WriteLine(Header + outputLine);
Console.ReadLine();
}
}
}
我想我找到了解决方案：
File.AppendAllText(text, Header + Environment.NewLine + outputLine + Environment.NewLine);
使用 File.AppendAllText 而不是 File.WriteAllText。使用 WriteAllText，您总是会删除旧内容。
但是考虑在开始写入之前清理文件 (File.WriteAllText(text, "");)，否则你将在其中包含上次 运行 的旧数据。
尽量使用String.Format("{0,-10}", name)，意思是名字的长度用空格补满，最大长度为10。减号表示左对齐，正数表示右对齐。
我将您的代码更新为：
string text = @"D:\C#\output.txt";
File.WriteAllText(text, "");
var inputEntries = File.ReadLines(@"D:\c#\debitorders.csv").Select(line =>
{
var values = line.Split(',');
return new
{
accountholder = values[0].Trim().Substring(0, 1) + values[1].Trim(),
accountnumber = long.Parse(values[2].Trim()),
accounttype = values[3].Trim(),
bankname = values[4].Trim(),
branch = values[5].Trim(),
amount = 100 * double.Parse(values[6].Trim()),
date = DateTime.ParseExact(values[7].Trim(), "MM/dd/yyyy", CultureInfo.InvariantCulture)
};
});
var banks = inputEntries.OrderBy(e => e.bankname)
.GroupBy(e => e.bankname, e => e);
foreach (var bank in banks)
{
var AccountName = bank.Key;
var NumberOfAccounts = bank.Count();
var TotalAmount = bank.Select(acc => acc.amount).Sum();
var Header = String.Format("{0,-20} {1,-10} {2}", AccountName, NumberOfAccounts.ToString("000"), TotalAmount.ToString("0000000000"));
var sortedAccounts = bank.OrderBy(acc => acc.accountholder)
.OrderByDescending(acc => acc.amount);
File.AppendAllText(text, Header + Environment.NewLine);
Console.WriteLine(Header);
foreach (var account in sortedAccounts)
{
var outputLine = String.Format("{0,-11} {1,15} {2,-3} {3,-10} {4,7} {5,-10}",
account.accountholder,
account.accountnumber,
account.accounttype.Substring(0, 3).ToUpper(),
account.branch,
account.amount,
account.date.ToString("ddMMyyyy")
);
//get first 2 characters
//account.accounttype.Substring(0, 3).ToUpper() + account.branch + "\t" + "00" +
// what are the "00" for? didn't include them you may this do by yourself
File.AppendAllText(text, outputLine + Environment.NewLine);
Console.WriteLine(outputLine);
}
File.AppendAllText(text, Environment.NewLine);
Console.WriteLine();
}
输出为：
ABSA 004 0000146162
KCooke 409155874935 SAV Southdowns 97589 01012013
BJames 409254998 SAV Melville 20774 09122012
SLane 409771987 SAV Roodepoort 20774 31122012
ZWhitehead 409122372301 CHE Irene 7025 01122012
First National Bank 002 0000045603
GSinclair 408999703657 CHE Fourways 27500 01122012
THenderson 401255489873 CHE Edenvale 18103 13122012
更好更简洁的解决方案是使用 List<string> 添加文本。在代码的末尾，只需将列表转换为数组并将所有行写入文件。
List<string> outputLine = new List<string>(); //note this addition to the code
foreach (var bank in banks)
{
//do header formatting stuff here
var Header = somecode
outputLine.Add(Header); //Add Header to outputLine
var sortedAccounts = bank.OrderBy(acc => acc.accountholder)
.OrderByDescending(acc => acc.amount);
foreach (var account in sortedAccounts)
{
var tempStringBuilder =
account.accountholder + "\t" +
account.accountnumber + "\t" +
//get first 2 characters
account.accounttype.Substring(0, 3).ToUpper() + account.branch + "\t" + "00" +
account.amount +
account.date.ToString("ddMMyyyy");
outputLine.Add(tempStringBuilder); //Add tempStringBuilder to outputLine
}
}
File.WriteAllLines("destination path", outputLine.ToArray()); //Write everything to your output file in one go
替代Excel解决方案：
Microsoft Excel 有一个非常强大的工具，叫做 Pivot Tables，它非常适合您的需要。如果您不熟悉它，请阅读一些有关它的教程。起初，这是一个让您了解工作流程以使用它的过程，但是一旦您掌握了它，它就非常简单。您只需拖放要分组的字段。
您可能还想考虑对原始数据使用 Data Connections 到 link，考虑到您拥有的数据集，这也很简单。