string path;
System.IO.Directory.CreateDirectory(string path);
DirectoryInfo dir = new DirectoryInfo(path);
dir.Create();//自行判断一下是否存在。
如果是创建子文件夹
DirectoryInfo dir = new DirectoryInfo(path);
dir.CreateSubdirectory(string subFolderName);
System.IO.File.AppendAllText("D:\\a.txt","这是一段写入文件的测试文字");
组合使用
//写入日志记事本
private void WritfLogText(string Text)
{
if (textLogFile=="")
textLogFile = ".\\Log\\UploadXmlLog" + System.DateTime.Now.ToString("yyyyMMdd_HHmmss") + ".txt";
DirectoryInfo dir = new DirectoryInfo(".\\Log");
dir.Create();//自行判断一下是否存在。
System.IO.File.AppendAllText(textLogFile, Text);
}