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  • C#Graphics画图

     public Form1()
            {
                InitializeComponent();
            }
    
            private void button1_Click(object sender, EventArgs e)
            {
                Graphics g = this.CreateGraphics();//创建GDI对像
    
                //创建画笔(颜色)
                Pen npen = new Pen(Brushes.Red);
    
                //创建两个点
                Point n1 = new Point(20, 20);
                Point n2 = new Point(255, 255);
    
                g.DrawLine(npen, n1, n2);
    
            }
    
            private void Form1_Paint(object sender, PaintEventArgs e)
            {
                Graphics g = this.CreateGraphics();//创建GDI对像
    
                //创建画笔(颜色)
                Pen npen = new Pen(Brushes.Red);
    
                //创建两个点
                Point n1 = new Point(20, 20);
                Point n2 = new Point(255, 255);
    
                g.DrawLine(npen, n1, n2);
    
            }
    
            private void button2_Click(object sender, EventArgs e)
            {
                Graphics ng = this.CreateGraphics();
    
                //创建画笔
                Pen npen = new Pen(Brushes.Red);
    
                Size sz=new System.Drawing.Size(100,100);
                Rectangle res = new Rectangle(new Point(50, 50), sz);
    
                ng.DrawRectangle(npen, res);
            }
    
            private void button3_Click(object sender, EventArgs e)
            {
                Graphics g = this.CreateGraphics();
    
                Pen npen = new Pen(Brushes.Blue);
    
                Size sz = new System.Drawing.Size(180, 180);
    
                Rectangle rec = new Rectangle(new Point(150, 150), sz);
    
                g.DrawPie(npen, rec, -50, -50);
            }
    
            private void button4_Click(object sender, EventArgs e)
            {
                Graphics g = this.CreateGraphics();
    
                Pen npen = new Pen(Brushes.Blue);
    
                g.DrawString("我是中国人", new Font("宋体", 20, FontStyle.Bold), Brushes.Blue, new PointF(29, 29));
            }
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  • 原文地址:https://www.cnblogs.com/zywf/p/4544755.html
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