我一直在将一些代码从 C++ 转换为 C#。我对 C# API 缺乏了解并没有让我找到 fprintf 的等价物。我基本上要做的是编写一个帮助类来将信息记录到文件中。到目前为止,我已经定义了以下类。如果有人看到不寻常的东西,请告诉我。方法“Log”当前仅记录字符串。我不知道这是否是最好的方法。无论如何,我想转换一些数字以转储到日志文件中。在 C++ 中,我让 fprintf 进行转换。我怎样才能在 C# 中实现类似的东西?
fprintf(file, "Wheel1: %f \t Wheel2: %f \t Dist: %f, Wheel0, Wheel1, TotalDist);
public class Logger
{
private string strPathName = string.Empty;
private StreamWriter sw = null;
/// <summary>
/// Constructor
/// </summary>
/// <param name="prefix"></param>
public Logger(string prefix)
{
DateTime datet = DateTime.Now;
// Format string
if (string.IsNullOrEmpty(prefix))
{
prefix += "_";
}
else
{
prefix = "";
}
strPathName = "Log_" + prefix + datet.ToString("MM_dd_hhmmss") + ".log";
if (File.Exists(strPathName) == true)
{
FileStream fs = new FileStream(strPathName, FileMode.OpenOrCreate, FileAccess.ReadWrite);
fs.Close();
}
}
/// <summary>
/// Create a directory if not exists
/// </summary>
/// <param name="strLogPath"></param>
/// <returns></returns>
private bool CheckDirectory(string strLogPath)
{
try
{
int nFindSlashPos = strLogPath.Trim().LastIndexOf("\\");
string strDirectoryname = strLogPath.Trim().Substring(0, nFindSlashPos);
if (Directory.Exists(strDirectoryname) == false)
{
//LogInfo("Creating log directory :" + strDirectoryname);
Directory.CreateDirectory(strDirectoryname);
}
return true;
}
catch (Exception)
{
return false;
}
}
public void Log(String message)
{
DateTime datet = DateTime.Now;
if (sw == null)
{
sw = new StreamWriter(strPathName, true);
}
sw.Write(message);
sw.Flush();
}
/// <summary>
/// Close stream
/// </summary>
public void Close()
{
if (sw != null)
{
sw.Close();
sw = null;
}
}
}
提前致谢
最佳答案
怎么样:
public void Log(String message, params object[] args)
{
DateTime datet = DateTime.Now;
if (sw == null)
{
sw = new StreamWriter(strPathName, true);
}
sw.Write(String.Format(message,args));
sw.Flush();
}
关于C# 等效于 fprintf,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/9526359/