想做简单游戏的同学们可以学习一下。

源码

using System;
using System.Drawing;
using System.Windows.Forms;namespace 键盘控制移动CS {public partial class Form1 : Form {public Form1() {InitializeComponent();}int 左右;int 上下;double X;double Y;double VX;double VY;double 加速度;Timer 时钟 = new Timer();Label 移动控件 = new Label();private void Form1_Load(object sender, EventArgs e) {this.KeyPreview = true;加速度 = 0.5;X = 300.0;Y = 300.0;移动控件.BackColor = Color.MediumPurple;移动控件.Size = new Size(60, 60);Controls.Add(移动控件);KeyDown += Form1_KeyDown;KeyUp += Form1_KeyUp;时钟.Tick += 时钟_Tick;时钟.Interval = 25;时钟.Enabled = true;}private void Form1_KeyDown(object sender, KeyEventArgs e) {if (e.KeyCode == Keys.Up)上下 = -1;if (e.KeyCode == Keys.Down)上下 = 1;if (e.KeyCode == Keys.Left)左右 = -1;if (e.KeyCode == Keys.Right)左右 = 1;}private void Form1_KeyUp(object sender, KeyEventArgs e) {if (e.KeyCode == Keys.Up)上下 = 0;if (e.KeyCode == Keys.Down)上下 = 0;if (e.KeyCode == Keys.Left)左右 = 0;if (e.KeyCode == Keys.Right)左右 = 0;}private void 时钟_Tick(object sender, EventArgs e) {VX = Math.Min(VX + 左右 * 加速度, 10);VY = Math.Min(VY + 上下 * 加速度, 10);X += VX;Y += VY;if (X < 0) { X = 2; VX = -VX; }if (Y < 0) { Y = 2; VY = -VY; }int 右边界 = ClientSize.Width - 移动控件.Width;int 下边界 = ClientSize.Height - 移动控件.Height;if (X > 右边界) { X = 右边界 - 2; VX = -VX; }if (Y > 下边界) { Y = 下边界 - 2; VY = -VY; }移动控件.Location = new Point((int)X, (int)Y);}}
}