C# - 使用字符串构建器将标头写入日志文件

Question

这应该是一个非常简单的解决方案,但由于某种原因,我错过了一些东西.我所要做的就是获取我必须编写标题的字符串生成器函数,但由于某种原因它当前不是.

当我尝试将if语句更改为!File.Exists(tempFileName)时,它不会通过我的循环运行.

有什么建议？另外,如果您需要更多信息,请与我们联系.提前致谢.

public static void Open(string tempFileName, string division,
                             int zipFiles, int conversions, int returnedFiles, int totalEmails)
    {
        StreamWriter dailyStats;

        //This is where I am missing something
        //I am passing in the original filename of a log, then adding "-Stats.log"
        //so I can tell the difference between what is the new stats file, and the original log file
        if (File.Exists(tempFileName))
        {
            dailyStats = new StreamWriter(tempFileName + "-Stats.log");

            StringBuilder sb = new StringBuilder();
            sb.Append("Division");
            sb.Append("\t");
            sb.Append("Zip Files");
            sb.Append("\t");
            sb.Append("Conversions");
            sb.Append("\t");
            sb.Append("Returned Files");
            sb.Append("\t");
            sb.Append("Total E-Mails");
            sb.Append("\t");

        }
        else
        {
            dailyStats = File.AppendText(tempFileName + "-Stats.log");
        }

        if (writeLog)
        {
            //Use a string builder to assemble the content for performance reasons
            StringBuilder s = new StringBuilder();
            s.Append(division);
            s.Append("\t");
            s.Append(zipFiles);
            s.Append("\t");
            s.Append(conversions);
            s.Append("\t");
            s.Append(returnedFiles);
            s.Append("\t");
            s.Append(totalEmails);
            s.Append("\t");

            dailyStats.WriteLine(s.ToString());
        }

        dailyStats.Close();
    }

Answer 1

你是不是错过了第一个街区的代码？:

dailyStats.WriteLine(sb.ToString());

从而:

    if (File.Exists(tempFileName))
    {
        dailyStats = new StreamWriter(tempFileName + "-Stats.log");

        StringBuilder sb = new StringBuilder();
        sb.Append("Division");
        sb.Append("\t");
        sb.Append("Zip Files");
        sb.Append("\t");
        sb.Append("Conversions");
        sb.Append("\t");
        sb.Append("Returned Files");
        sb.Append("\t");
        sb.Append("Total E-Mails");
        sb.Append("\t");

        // Add this ......
        dailyStats.WriteLine(sb.ToString());
    }