C语言画点问题

#include<graphics.h>

#include<conio.h>

#include<stdio.h>

void main()

{

int driver=DETECT, mode, x ,y

printf("Please input x, y!\nx: ")

scanf("%d",&x)

printf("y: ")

scanf("%d", &y)

initgraph(&driver, &mode, "")//进入图形界面

setbkcolor(0)//设置背景色

putpixel(x, y, 15)//画点，要注意看，很小

getch()//暂停，否则看不见了

}

Point m_Pnt public Form1(){InitializeComponent()m_Pnt = new Point( -1, -1 ) pictureBox1.MouseClick += new MouseEventHandler(pictureBox1_MouseClick) pictureBox1.Paint += new PaintEventHandler(pictureBox1_Paint) } void pictureBox1_MouseClick(object sender, MouseEventArgs e){// 这里模仿文本框修改坐标点，同时刷新下picturebox，鼠标点哪里，哪里就会画一个红点m_Pnt = e.Location pictureBox1.Invalidate() } private void pictureBox1_Paint(object sender, PaintEventArgs e){e.Graphics.FillEllipse( Brushes.Red, m_Pnt.X - 2, m_Pnt.Y - 2, 5, 5 ) }

---