我这边试了一点闪烁都没有啊

using Timer = System.Threading.Timer;

namespace WinFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            this.DoubleBuffered = true;
            InitializeComponent();
            SetWavesValues();
            timer1 = new Timer(RefreshWaves, null, TimeSpan.FromMilliseconds(50), TimeSpan.FromMilliseconds(50));
        }
        private Timer timer1;
        private int[] myWave = new int[1024];

        void RefreshWaves(object? o)
        {
            try
            {
                SetWavesValues();
                this.Invoke(this.Refresh);
            }
            catch { }
        }

        void SetWavesValues()
        {
            for (int i = 0; i < myWave.Length; i++)
            {
                myWave[i] = Random.Shared.Next(768);
            }
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            e.Graphics.Clear(Color.White);
            using Bitmap bmp = new Bitmap(1024, 768);
            using Graphics g = Graphics.FromImage(bmp);
            using Pen pen = new Pen(Color.YellowGreen);
            int i;

            for (i = 0; i < myWave.Length - 1; i++)
            {
                g.DrawLine(pen, i, myWave[i], i + 1, myWave[i + 1]);
            }

            e.Graphics.DrawImage(bmp, 0, 0);
        }
    }
}

【 在 wjie 的大作中提到: 】
: 这个在创建form的时候已经使能了，但还是闪，无论是1ms还是100ms定时刷新都闪，感觉好像CPU忙不过来的样子
: this.SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.ResizeRedraw |ControlStyles.AllPaintingInWmPaint, true);
: this.UpdateStyles();
: ...................
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FROM 113.66.230.*

我估计你如果跟着官方文档来写 repaint，应该没什么机会错。。
不过我也没看倒是

【 在 moneybox 的大作中提到: 】
: 就像这种困扰了我好多年的绝世好信息，一般从哪儿获得....
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FROM 14.145.21.*