如何在C# windows应用程序中保存文件路径和使用浏览按钮中的路径

using System;
using System.Windows.Forms;

namespace FileBrowserExample
{
    public partial class MainForm : Form
    {
        private string filePath;

        public MainForm()
        {
            InitializeComponent();
        }

        private void browseButton_Click(object sender, EventArgs e)
        {
            OpenFileDialog openFileDialog = new OpenFileDialog();
            openFileDialog.Filter = "All Files (*.*)|*.*";
            openFileDialog.RestoreDirectory = true;

            if (openFileDialog.ShowDialog() == DialogResult.OK)
            {
                filePath = openFileDialog.FileName;
                filePathTextBox.Text = filePath;
            }
        }

        private void saveButton_Click(object sender, EventArgs e)
        {
            // 在这里使用保存的文件路径变量 filePath 进行文件保存操作
            // 例如：File.Copy(filePath, "目标路径");
        }
    }
}