C# Conditional 条件特性打印调试信息

#define MY_DEBUG   // 这个可以用中文

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            MyDebug("Hello World!");
        }


        [Conditional("MY_DEBUG")]
        public void MyDebug(string msg)
        {
            Console.WriteLine(msg);
        }
    }
}