C#利用WinForm实现查看指定目录下所有图片功能

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
 
namespace pictureBox图片的上一张下一张
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
 
        private void Form1_Load(object sender, EventArgs e)
        {
            // 初始页面加载的图片的绝对路径
            pictureBox1.Image = Image.FromFile(@"C:/");
        }
        // 获得指定文件夹的所有文件的全路径
        string[] path = Directory.GetFiles(@"C:/");
        int i = 0;
        private void button2_Click(object sender, EventArgs e)
        {
            i++;
            if (i == path.Length)
            {
                i = 0;
            }
            pictureBox1.Image = Image.FromFile(path[i]);
        }
 
        private void button1_Click(object sender, EventArgs e)
        {
            i--;
            if (i < 0)
            {
                i = path.Length - 1;
            }
            pictureBox1.Image = Image.FromFile(path[i]);
        }       
    }
}