1. Openfiledialog獲取文件名
OpenFileDialog OFD = new OpenFileDialog();
if (OFD.ShowDialog() == DialogResult.OK)
{
int index =OFD.FileName.LastIndexOf("\\"); //當前文件的路徑作為根目錄
textBox1.Text = OFD.FileName.Substring (index +1);//獲取當前目錄,添加到 textBox1中
}