C#实现获取当前文件路径的上级路径

界面：

声明：

textBox1.Text为指定文件路径：string path = @"F:ABB-pragramABB工作站ABB StationSystemsSituationalTeaching_CarryHOME";

textBox2.Text为得到的该指定文件路径的上级路径（通过：提取路径按钮实现）

代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace 文件路径测试
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
string path = @"F:ABB-pragramABB工作站ABB StationSystemsSituationalTeaching_CarryHOME";
private void button1_Click(object sender, EventArgs e)
{
DirectoryInfo pathInfo = new DirectoryInfo(path);
string newPath = pathInfo.Parent.FullName;
this.textBox2.Text = newPath.ToString();
}

private void Form1_Load(object sender, EventArgs e)
{
this.textBox1.Text = path.ToString();
}
}
}

显示结果：

源码下载：链接：https://pan.baidu.com/s/1K6EH1G1vSy2wRIXzgZlxuQ 密码：c0jd