[英]New line in a string is not works with text file
我有一個 function 可以將消息寫入文本文件。 但是當傳遞帶有“Environment.NewLine”的字符串時,它不會將新行寫入文本文件。 相反,它會寫入“\r\n”。 如何糾正這個? 我嘗試過使用“\n”而不是“Environment.NewLine”。 新線路仍然沒有到來。 僅當將帶有新行的字符串傳遞給 function 時才會發生此問題。例如變量“消息”
string message= "First "+Environment.NewLine+" message.";
LogTheDetails(message);
public static void LogTheDetails(String message)
{
string path = AppDomain.CurrentDomain.BaseDirectory + "\\logs";
var directory = new DirectoryInfo(path);
if (directory.Exists == false)
{
directory.Create();
}
string FilePath = path + "/" + currentdate + ".txt";
if (!File.Exists(FilePath)) //FILE WRITING FIRST TIME
{
File.Create(FilePath).Dispose();
using (TextWriter tw = new StreamWriter(FilePath))
{
tw.WriteLine("============================================================\n --Logs--");
}
}
else if (File.Exists(FilePath))//IF FILE ALREADY EXIST - APPEND LINES
{
string testString= "testString"+ Environment.NewLine+ "WithNewLine";
File.AppendAllText(FilePath, "\n============================================================\n");
File.AppendAllText(FilePath, message);
File.AppendAllText(FilePath, testString);
File.AppendAllText(FilePath, "\n============================================================\n");
}
}
Output
============================================================
--Logs--
============================================================
First \r\n message.
testString
WithNewLine
============================================================
預計 Output:
============================================================
--Logs--
============================================================
First
message.
testString
WithNewLine
============================================================
下面一段代碼給出了你要找的 output,我在 .net 5 控制台應用程序中試過了。
using System;
using System.IO;
namespace ConsoleApp4
{
class Program
{
static string message = "First " + Environment.NewLine + " message.";
static void Main(string[] args)
{
LogTheDetails(message);
Console.WriteLine("Hello World!");
}
public static void LogTheDetails(string message)
{
string path = AppDomain.CurrentDomain.BaseDirectory + "\\logs";
var directory = new DirectoryInfo(path);
if (directory.Exists == false)
{
directory.Create();
}
string currentdate = "test";
string FilePath = path + "/" + currentdate + ".txt";
if (!File.Exists(FilePath)) //FILE WRITING FIRST TIME
{
File.Create(FilePath).Dispose();
using (TextWriter tw = new StreamWriter(FilePath))
{
tw.WriteLine("========================================================\n
--Logs--");
}
}
else if (File.Exists(FilePath))//IF FILE ALREADY EXIST - APPEND
LINES
{
string testString = Environment.NewLine + "testString" +
Environment.NewLine + "WithNewLine";
File.AppendAllText(FilePath,
"\n============================================================\n");
File.AppendAllText(FilePath, message);
File.AppendAllText(FilePath, testString);
File.AppendAllText(FilePath,
"\n============================================================\n");
}
}
}
}
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