如何使用Cisco IOS文件系统命令

网上多的是：

using System;
using SystemCollectionsGeneric;
using SystemComponentModel;
using SystemData;
using SystemDrawing;
using SystemText;
using SystemWindowsForms;
using SystemIO;
using SystemDrawingImaging;
namespace base64_img
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        // 转为 base64编码的文本
        private void button1_Click(object sender, EventArgs e)
        {
            OpenFileDialog dlg = new OpenFileDialog();
            dlgTitle = "选择要转换的";
            dlgFilter = "Image files (jpg;bmp;gif)|jpgjpeg;gif;bmp|AllFiles ()|";
            if (DialogResultOK == dlgShowDialog())
            {
                ImgToBase64String(dlgFileName);
            }
        }
        // 转为 base64编码的文本
        private void ImgToBase64String(string Imagefilename)
        {
            try
            {
                Bitmap bmp = new Bitmap(Imagefilename);
                thispictureBox1Image = bmp;
                FileStream fs = new FileStream(Imagefilename + "txt", FileModeCreate);
                StreamWriter sw = new StreamWriter(fs);
                MemoryStream ms = new MemoryStream();
                bmpSave(ms, SystemDrawingImagingImageFormatJpeg);
                byte[] arr = new byte[msLength];
                msPosition = 0;
                msRead(arr, 0, (int)msLength);
                msClose();
                String strbaser64 = ConvertToBase64String(arr);
                swWrite(strbaser64);
                swClose();
                fsClose();
                MessageBoxShow("转换成功!");
            }
            catch (Exception ex)
            {
                MessageBoxShow("ImgToBase64String 转换失败/nException:" + exMessage);
            }
        }
        //base64编码的文本 转为 
        private void button2_Click(object sender, EventArgs e)
        {
            OpenFileDialog dlg = new OpenFileDialog();
            dlgTitle = "选择要转换的base64编码的文本";
            dlgFilter = "txt files|txt";
            if (DialogResultOK == dlgShowDialog())
            {
                Base64StringToImage(dlgFileName);
            }
        }
        //base64编码的文本 转为 
        private void Base64StringToImage(string txtFileName)
        {
            try
            {
                FileStream ifs = new FileStream(txtFileName, FileModeOpen, FileAccessRead);
                StreamReader sr = new StreamReader(ifs);
                String inputStr = srReadToEnd();
                byte[] arr = ConvertFromBase64String(inputStr);
                MemoryStream ms = new MemoryStream(arr);
                Bitmap bmp = new Bitmap(ms);
                bmpSave(txtFileName + "jpg", SystemDrawingImagingImageFormatJpeg);
                //bmpSave(txtFileName + "bmp", ImageFormatBmp);
                //bmpSave(txtFileName + "gif", ImageFormatGif);
                //bmpSave(txtFileName + "png", ImageFormatPng);
                msClose();
                srClose();
                ifsClose();
                thispictureBox1Image = bmp;
                MessageBoxShow("转换成功！");
            }
            catch (Exception ex)
            {
                MessageBoxShow("Base64StringToImage 转换失败/nException："+exMessage);
            }
        }
    }
}
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