using System;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace ImageListRemovePicture{  public partial class Form1 : Form  {    public Form1()    {      InitializeComponent();    }    //動態加載圖片    private void Form1_Load(object sender, EventArgs e)    {      pictureBox1.Width = 200;      pictureBox1.Height = 165;      string Path = Application.StartupPath.Substring(0, Application.StartupPath.Substring(0, Application.StartupPath.LastIndexOf("http://")).LastIndexOf("http://"));      Path += @"/01.jpg";//加載一張外部圖片      Image img = Image.FromFile(Path, true);      imageList1.Images.Add(img);      imageList1.ImageSize = new Size(200,165);    }    private void button1_Click(object sender, EventArgs e)    {      if (imageList1.Images.Count == 0)      {        MessageBox.Show("沒有圖像可移除！");      }      else      {        pictureBox1.Image = imageList1.Images[0];      }    }    //動態移除圖片    private void button2_Click(object sender, EventArgs e)    {      imageList1.Images.RemoveAt(0);      pictureBox1.Image = null;    }  }}