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C#文件操作的簡(jiǎn)單實(shí)例

 更新時(shí)間：2014年02月15日 16:35:33   作者：  
這篇文章主要介紹了C#文件操作的簡(jiǎn)單實(shí)例,需要的朋友可以參考下
文件的讀取
復(fù)制代碼 代碼如下:

 FileStream fs = new FileStream(@"D:\12.txt", FileMode.Open);
            byte[] buffer = new byte[1024 * 1024];
            fs.Read(buffer, 0, buffer.Length);
            string content = Encoding.Default.GetString(buffer);
            textBox1.Text = content;
            fs.Dispose();

文件的保存
復(fù)制代碼 代碼如下:

 SaveFileDialog sfd = new SaveFileDialog();
            DialogResult rst = sfd.ShowDialog();
            if(rst==System.Windows.Forms.DialogResult.OK)
            {
                FileStream fs = new FileStream(sfd.FileName,FileMode.Create);
                string content = textBox1.Text;
                byte[] buffer = ASCIIEncoding.UTF8.GetBytes(content);
                fs.Write(buffer,0,buffer.Length);
                fs.Dispose();

文件的復(fù)制
復(fù)制代碼 代碼如下:

FileStream streamread = new FileStream(@"D:\123.wmv",FileMode.Open);
            FileStream streamwrite = new FileStream(@"F:\1212.wmv",FileMode.Create);
            byte[]buffer=new byte[1024*1024*3];
            int Length;
            do
            {
                Length = streamread.Read(buffer,0, buffer.Length);
                streamwrite.Write(buffer,0, Length);
            }
            while (Length == buffer.Length);
            streamread.Dispose();
            streamwrite.Dispose();
            MessageBox.Show("Copy Success");

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