C#屏幕壁纸

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace WindowsFormsApp1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { this.BackColor = Color.Cyan; label1.ForeColor = Color.Red; label1.Font = new Font("",24); label1.Left = this.Width / 2 - label1.Width / 2; this.FormBorderStyle = FormBorderStyle.None; this.Location = new Point(0,0); } private void timer1_Tick(object sender, EventArgs e) { this.Left = this.Left + 3; this.Top = this.Top + 3; if (this.Top + this.Height >= Screen.PrimaryScreen.WorkingArea.Height) { timer1.Stop(); timer2.Start(); } if (this.Left + this.Width >= Screen.PrimaryScreen.Bounds.Width) { timer1.Stop(); timer4.Start(); } } private void timer2_Tick(object sender, EventArgs e) { //this.Top += 3; this.Left = this.Left + 3; this.Top = this.Top - 3; if (this.Left + this.Width >= Screen.PrimaryScreen.Bounds.Width) { timer2.Stop(); timer3.Start(); } if (this.Top <= 0) { timer2.Stop(); timer1.Start(); } } private void timer3_Tick(object sender, EventArgs e) { this.Left = this.Left - 3; this.Top = this.Top - 3; if (this.Left <= 0) { timer3.Stop(); timer4.Start(); } if (this.Top <= 0) { timer3.Stop(); timer4.Start(); } } private void timer4_Tick(object sender, EventArgs e) { this.Left = this.Left - 3; this.Top = this.Top + 3; if (this.Left <= 0) { timer4.Stop(); timer1.Start(); } if (this.Top + this.Height >= Screen.PrimaryScreen.WorkingArea.Height) { timer4.Stop(); timer3.Start(); } } } }

运行结果