using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private Label label = new Label();
public string text = "csdn baihe_591";
private void Form1_Load(object sender, EventArgs e)
{
this.label.Location = new Point(149, 13);
this.label.Size = new Size(134, 16);
this.Controls.Add(label);
this.label.Text = "";
this.timer1.Enabled = true;
this.timer1.Interval = 500;
p = new PointF(this.label.Size.Width, 0);
}
PointF p;
Font f = new Font("宋体", 10);
Color c = Color.White;
string temp;
private void timer1_Tick(object sender, EventArgs e)
{
Graphics g = this.label.CreateGraphics();
SizeF s = new SizeF();
s = g.MeasureString(text, f);//测量文字长度
Brush brush = Brushes.Black;
g.Clear(c);//清除背景
if (temp != text)//文字改变时,重新显示
{
p = new PointF(this.label.Size.Width, 0);
temp = text;
}
else
p = new PointF(p.X - 10, 0);//每次偏移10
if (p.X <= -s.Width)
p = new PointF(this.label.Size.Width, 0);
g.DrawString(text, f, brush, p);
}
}
}
