C# FileStream分块读取和保存文件

一 FileStream分块读取文件

        public byte[] GetFileData(string fileName, long startPosition, long length)

        {

            byte[] data;

            using (FileStream fileRead = new FileStream(fileName, FileMode.Open, FileAccess.Read))

            {

                 data = new byte[length];

                fileRead.Seek(startPosition, SeekOrigin.Begin);

                fileRead.Read(data, 0, length);

                fileRead.Close();

                fileRead.Dispose();

            }
       }

View Code