闲的没事，突然想起电影里那些高科技仪器，一个光点上下跳动，后面拉出精美的波形图，说干就干，

先来个效果：

我从来没写过这样的控件，所以关于某些算法都是自己想出来的，可能某些地方写的不好，还请大家指出。

 首先添加一个timer，50s

using System; using System.Collections.Generic; using System.ComponentModel; using System.Drawing; using System.Data; using System.Text; using System.Windows.Forms; namespace High_Tech_Watch {
    public partial class UserControl1 : UserControl     {
    public UserControl1()         {
                InitializeComponent();         } int[] oldLine; int SIZE = 15; //方格的大小         Pen LINEPEN = new Pen(Color.FromArgb(3,64, 129), 1); //背景线条颜色         Pen FORELINEPEN = new Pen(Color.LightBlue);  //前景线条颜色 private void UserControl1_Paint(object sender, PaintEventArgs e)         {
                Graphics g = e.Graphics; int Bvalue;             Bvalue = Value; if (shake != 0)             {
                    Random ro = new Random(); int r = ro.Next(0, shake);                 Value += (ro.Next(-shake, 0) / 2) + r/2; if (Value>100)                 {
                        Value = 100;                 } if (Value < 0)                 {
                        Value = 0;                 }             } int h = (int)(this.Size.Height / SIZE); int w = (int)(this.Size.Width / SIZE )+ 1;//这里加1保证了滚动时最右侧垂直线及时出现             for (; h >= 0;h-- )             {
                    g.DrawLine(LINEPEN, new Point(0, h * SIZE), new Point(this.Size.Width, h * SIZE));             } for (; w>=0;w-- )             {
                    g.DrawLine(LINEPEN, new Point((w * SIZE) - limits, 0), new Point((w * SIZE) - limits, this.Size.Height));             } for (int i = oldLine.Length - 1,j = 0;i >j ;j++ )             {
                    g.DrawLine(FORELINEPEN, new Point(j,(this.Height - (int)(((float)oldLine[j] / (float)100) * (float)this.Height) ) -1), new Point(j + 1, (this.Height - (int)(((float)oldLine[j+1] / (float)100) * (float)this.Height))-1) );             } for (int i = oldLine.Length - 1, j = 0; i > j; j++)             {
                    oldLine[j] = oldLine[j + 1];             }             oldLine[oldLine.Length - 1] = Value;             pintLightPoint(e);             Value = Bvalue;         } private void pintLightPoint(PaintEventArgs e)         {
                Graphics g = e.Graphics;             g.DrawImage(global::High_Tech_Watch.Resource1.未标题_2,new Rectangle(new Point(this.Width - 50,this.Height - (int)(((float)lightPointValue / (float)100) * (float)this.Height ) - 10),new Size(20,20)));         } int lightPointValue = 50; int limits = 0;//滚动就靠他了，是一个范围         private void timer1_Tick(object sender, EventArgs e)         {
                limits++; if (limits >= SIZE)             {
                    limits = 0;             } this.Invalidate();         } private void UserControl1_Load(object sender, EventArgs e)         {
                oldLine = new int[this.Width - 40];         } int shake = 0;         [DefaultValue(0),Description("抖动率，值控件输入的值自动抖动（禁用是为0）"),Category("属性值")] public int Shake         {
    get{
    return shake;} set{shake = value;}         }         [DefaultValue(0),Description("当前数值"),Category("属性值")] public int Value         {
    get { return lightPointValue; } set { lightPointValue = value; }         }         [Description("当前数值"), Category("属性值")] public Pen LinePen         {
    get { return LINEPEN; } set             {
                    LINEPEN = value; this.Invalidate();             }         } private void UserControl1_Resize(object sender, EventArgs e)         {
    if ((this.Width - 40) > oldLine.Length)             {
    int[] newArry = new int[this.Width - 40];                 oldLine.CopyTo(newArry, newArry.Length - oldLine.Length);                 oldLine = new int[this.Width - 40];                 oldLine = newArry;             } if ((this.Width - 40) < oldLine.Length)             {
    int[] newArry = new int[this.Width - 40]; for (int i = newArry.Length - 1,j = oldLine.Length - 1; i >=0 ;i--,j-- )                 {
                       newArry[i] = oldLine[j];                 }                 oldLine = new int[this.Width - 40];                 oldLine = newArry;             }         }     } }

 还要说一点，那个点是我用Ps出来的，目前没有什么好办法写出这种发光一样效果的圆，如果谁知道，留下来