创建文件夹

        private void button1_Click(object sender, EventArgs e)
        {
            FolderBrowserDialog FBDialog = new FolderBrowserDialog();
            if (FBDialog.ShowDialog() == DialogResult.OK)
            { 
                string strPath=FBDialog.SelectedPath;
                if (strPath.EndsWith("\\"))
                    textBox1.Text = strPath;
                else
                    textBox1.Text = strPath + "\\";
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            DirectoryInfo Dinfo = new DirectoryInfo(textBox1.Text+textBox2.Text);
            Dinfo.Create();
        }