windows的文件拷贝

来源：互联网发布：linux gcc编译例题编辑：程序博客网时间：2024/05/05 13:01

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;
using System.IO;

namespace Windows大文件拷贝
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{
//File.Copy(@"C:\Users\Administrator\Pictures\bg.png", @"g:\images\bg.png", true);
//拷贝avi格式的视频文件,大概市场30分钟
//File.Copy(@"E:\csdn\2011级行课\2013-03-08\上午5批处理和脚本.avi", @"G:\images\上午5批处理和脚本.avi",true);
//拷贝3个多G的系统映像文件
//File.Copy(@"E:\soft\cn_windows_7_ultimate_x64_dvd_x15-66043.iso", @"g:\images\cn_windows_7_ultimate_x64_dvd_x15-66043.iso",true);

//拷贝大文件的时候不能使用上面的方式
Stream reader= File.Open(@"E:\soft\cn_windows_7_ultimate_x64_dvd_x15-66043.iso", FileMode.Open, FileAccess.Read);
Stream writer = File.Open(@"G:\images\cn_windows_7_ultimate_x64_dvd_x15-66043.iso",FileMode.OpenOrCreate,FileAccess.Write);
MessageBox.Show("复制成功");
}
}
}

每次读取1M

Stream reader1 = File.Open(@"E:\soft\laomaotao2013.rar", FileMode.Open, FileAccess.Read);
            Stream writer1 = File.Open(@"G:\images\laomaotao2013.rar", FileMode.OpenOrCreate, FileAccess.Write);
            Stopwatch watch = new Stopwatch();
            watch.Start();
            reader1.CopyTo(writer1, 1024 * 10);
            watch.Stop();
            MessageBox.Show(watch.Elapsed.TotalMilliseconds.ToString());
            reader1.Dispose();
            writer1.Dispose();