public class Utils
{
    
    /// <summary>
    /// 写日志
    /// </summary>
    /// <param name="message">日志内容</param>
    /// <param name="fileName">文件名称</param>
    public static void WriteLog(string message, string fileName = "message")
    {
        Console.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff") + "--" + fileName + "--" + message);
    }

    /// <summary>
    /// 命名转换
    /// </summary>
    /// <param name="name">名称</param>
    /// <param name="startUpperNum">从第几个单词开始首字母大写</param>
    /// <returns>转换后名称</returns>
    public static string transferName(string name, int startUpperNum = 1)
    {
        if(string.IsNullOrEmpty(name))
        {
            return "";
        }
        string result = "";
        string[] list = name.Trim('_').Split('_');
        if(list.Length == 1)
        {
            if(startUpperNum == 1)
            {
                return name.Substring(0, 1).ToUpper() + name.Substring(1);
            }
            else if(startUpperNum > 1)
            {
                return name.Substring(0, 1).ToLower() + name.Substring(1);
            }
            else
            {
                return name;
            }
        }
        int index = 0;
        foreach(string sub in list)
        {
            index += 1;
            if(index >= startUpperNum)
            {
                result += sub.Substring(0, 1).ToUpper() + sub.Substring(1).ToLower();
            }
            else
            {
                result += sub.ToLower();
            }
        }
        if(startUpperNum > 1)
        {
            result = result.Substring(0, 1).ToLower() + result.Substring(1);
        }
        return result;
    }


}