一、打开图片
ps：必须先在pictureBox中导入一张图片
private void button4_Click(object sender, EventArgs e)//选择、更换图片
{
if (openFileDialog1.ShowDialog() == DialogResult.OK)//需要工具箱的openFileDialog
{
Text = openFileDialog1.FileName;//选择图片
Bitmap map = (Bitmap)Image.FromFile(openFileDialog1.FileName);
pictureBox1.Image = map;//更换图片 }
}
二、打开txt文档
private void button5_Click(object sender, EventArgs e)//打开txt文档，仅限英文
{
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
StreamReader sr = new StreamReader(openFileDialog1.FileName);
string line;
while ((line = sr.ReadLine()) != null)
{
listBox3.Items.Add(line);
}
}
}