如何用C#实现winform功能

[m0_37684592]

小弟用C#写了一个winform 程序界面（图1），主要实现从电脑上的网络盘每天定时获取备份文件的大小，然后自动写入指定位置的excel文件（图2）中自动保存。现在能够实现手动选择文件获取到大小，但是不知道如何实现写到指定位置的Excel中，请各路前辈指点一下代码。最好能够解决实现程序一直运行，每天早上9点自动获取备份大写，然后自动写入网络盘上的excel中，谢谢！

[m0_37684592]

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using System.Runtime.InteropServices; using System.IO; namespace 读取备份信息 { public partial class Frm_Main : Form { public Frm_Main() { InitializeComponent(); } OpenFileDialog open = new OpenFileDialog(); private void button1_Click(object sender, EventArgs e) { if (open.ShowDialog() == DialogResult.OK) { textBox1.Text = open.FileName; } FileInfo MyFileInfo = new FileInfo(open.FileName); float MyFileSize = (float)MyFileInfo.Length / (1024 * 1024); textBox5.Text = MyFileSize.ToString() + "MB"; return; } private void timer1_Tick(object sender, EventArgs e) { DateTime current = DateTime.Now; textBox8.Text = current.Year.ToString()+ "/" + current.Month.ToString() + "/" + current.Day.ToString(); } private void button5_Click(object sender, EventArgs e) { if (open.ShowDialog() == DialogResult.OK) { textBox3.Text = open.FileName; } FileInfo MyFileInfo = new FileInfo(open.FileName); float MyFileSize = (float)MyFileInfo.Length / (1024 * 1024); textBox6.Text = MyFileSize.ToString() + "MB"; return; } private void button6_Click(object sender, EventArgs e) { if (open.ShowDialog() == DialogResult.OK) { textBox4.Text = open.FileName; } FileInfo MyFileInfo = new FileInfo(open.FileName); float MyFileSize = (float)MyFileInfo.Length / (1024 * 1024); textBox7.Text = MyFileSize.ToString() + "MB"; return; } private void button2_Click(object sender, EventArgs e) { if (open.ShowDialog() == DialogResult.OK) { textBox2.Text = open.FileName; } } private void button3_Click(object sender, EventArgs e) { Workbook workbook = new Workbook(); } } } 目前的代码写到这里了，就是下面的写不下去了，求指导（如何将备份大小信息写到指定位置的excel中）

[exception92]

搜索 C# NPOI

[mirrorspace]

自动定时备份,写入EXCEL需要使用定时服务 1.写一个C#的服务,定时执行备份和写EXCEL任务. 2.C#操作EXCEL,工具类很多,NPOI,或者逗号分隔的文本也行