private void button1_Click(object sender, EventArgs e)        {            folderBrowserDialog1.ShowNewFolderButton = true;//是否显示新建的文件夹选项            DialogResult dr = folderBrowserDialog1.ShowDialog();//显示选择文件夹对话框            if (dr == DialogResult.OK)            {                MessageBox.Show(folderBrowserDialog1.SelectedPath, "选择的路径");//显示选择的路径            }        }