Winform基础：PictureBox控件

PictureBox：显示图像。

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            //设置图片如何在pictureBox1中显示
            pictureBox1.SizeMode = PictureBoxSizeMode.CenterImage;
            //显示指定路径的图片
            pictureBox1.Image = Image.FromFile(path[i]);
        }
        //获得指定文件夹的所有文件的全路径
        string[] path = Directory.GetFiles(@"C:\Users\46124\Desktop\Create one's own\Animation");
        int i = 0;
        /// <summary>
        /// 点击更换下一张图片
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void buttonNext_Click(object sender, EventArgs e)
        {
            i++;
            //如果已经是最后一张了，点击下一张，使i=0，回到最开始的一张
            if (i == path.Length)
            {
                i = 0;
            }
            pictureBox1.Image = Image.FromFile(path[i]);
        }
        /// <summary>
        /// 上一张图片
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void buttonLast_Click(object sender, EventArgs e)
        {
            i--;
            //如果已经是第一张了，点击上一张，使i=path.Length-1，回到最后的一张
            if (i == -1)
            {
                i = path.Length - 1;
            }
            pictureBox1.Image = Image.FromFile(path[i]);
        }
        private void button1_Click(object sender, EventArgs e)
        {
            this.Close();
        }
    }