C#學習筆記之LOG檔案存儲

在有些小項目中，要使用到存儲LOG資訊（純文字的）；此處選用streamwriter示例：

1.庫

using System.IO;
           

2. 源碼

namespace HCIUtilsLog
{
    class ZGLogMessage
    {
        System.IO.StreamWriter fs = null;

        public void initLog(string folder)
        {
            string logPath = createFolder(folder);
            File.Delete(logPath);

            fs = new System.IO.StreamWriter(logPath, true);
            fs.AutoFlush = true;
        }

        public void writeLog(string text)
        {
            fs.Write(text);
        }

        public void close()
        {
            fs.Flush();
            fs.Close();
        }

        private string createFolder(string folder)
        {
            string subPath = "./capture/" + folder;
           
            if (false == System.IO.Directory.Exists(subPath))
            {
                System.IO.Directory.CreateDirectory(subPath);
            }

            return subPath + "/log.txt";
        }
    }
}
           

3. 使用

調用initLog建立檔案夾，以及擷取檔案；

private ZGLogMessage zgLog = new ZGLogMessage();

// 此處以序列槽号為路徑名建立路徑
zgLog.initLog(cmbDevice.PortName + "_log");


// write string
zgLog.writeLog(text);

// close
zgLog.close();