记录txt日记

    public static class StringHelper
    {
        public static void ToLog(this string content,string txtName)
        {
            string filePath = System.Environment.CurrentDirectory + $"\\{txtName}.txt";
            if (!System.IO.File.Exists(filePath))
            {
                System.IO.File.Create(filePath).Dispose();
            }
            System.IO.File.AppendAllLines(filePath,new string[] { content });
        }
    }