C#——用输出参数（out）求文件路径的目录和文件名

设计界面

 

编写代码

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

 

namespace a

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

 

        private void button1_Click(object sender, EventArgs e)

        {

            Spilt sp = new Spilt();

            string dir,filename;

            string path = textBox1.Text;

            sp.getSpilt(path,out dir,out filename);

            textBox2.Text =dir ;

            textBox3.Text=filename ;

 

        }

    }

    class Spilt 

    {

        int pos;

        public void getSpilt(string path,out string dir,out string filename)

        {

            pos = path.LastIndexOf('\\');

            dir = path.Substring(0,pos);

            filename = path.Substring(pos+1);

        }

    }

}

 

 

运行结果