namespace 照片 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } //获得文件夹中所有图片文件的全路径 string[] path = Directory.GetFiles(@"C:\Users\yn\Pictures\C#\"); int i = 0; //下一张 private void button2_Click(object sender, EventArgs e) { //每点一下,i++,path[i]指向下一张图片 i++; if (i>path.Length-1) { i = 0;//到最后一张,返回第一张 } pictureBox1.Image = Image.FromFile(path[i]); } //上一张 private void button1_Click(object sender, EventArgs e) { i--; if (i<0) { i = path.Length-1; } pictureBox1.Image = Image.FromFile(path[i]); } private void Form1_Load(object sender, EventArgs e) { //窗体加载时,显示一张图片 pictureBox1.Image = Image.FromFile(@"C:\Users\yn\Pictures\C#\31113.png"); } } }
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