howtouseregion

//=============經手前=============
#region 新增
if (true)
{
    Console.WriteLine("Hello True");
}
#endregion

#region 修改
else
{
    Console.WriteLine("Hello false");
}
#endregion


//=============經手後=============
if (true)
{
    #region 新增
    Console.WriteLine("Hello True");
    #endregion
}
else
{
    #region 修改
    Console.WriteLine("Hello false");
    #endregion
}