C#封装二进制文件处理

using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.IO;

namespace MyQuery.Utils
{
    /// <summary>
    /// 封装二进制文件处理
    /// by 贾世义 2011-8-21
    /// </summary>
    public static class FileHelper
    {
        /// <summary>
        /// 获得文件数据
        /// </summary>
        /// <param name="fileName">完整路径文件名</param>
        /// <returns></returns>
        public static byte[] GetContent(string fileName)
        {
            byte[] result = null;
            if (File.Exists(fileName))
            {
                FileStream fs = new FileStream(fileName, FileMode.Open);
                result = new byte[fs.Length];
                int offset = 0;
                while (offset < fs.Length)
                {
                    int count = 1024;
                    if (fs.Length < offset + count)
                    {
                        count = Convert.ToInt32(fs.Length - offset);
                    }
                    fs.Read(result, offset, count);
                    offset += count;
                }
                fs.Close();
            }
            return result;
        }
        /// <summary>
        /// 将内容写入文件
        /// </summary>
        /// <param name="name">完整文件名</param>
        /// <param name="content">内容</param>
        /// <param name="isCover">是否覆盖存在文件</param>
        public static void WriteToFile(string name, byte[] content, bool isCover)
        {
            FileStream fs = null;
            try
            {
                if (!isCover && File.Exists(name))
                {
                    fs = new FileStream(name, FileMode.Append, FileAccess.Write);
                }
                else
                {
                    fs = new FileStream(name, FileMode.Create, FileAccess.Write);
                }
                BinaryWriter br = new BinaryWriter(fs);
                br.Write(content);
                br.Flush();
                br.Close();
            }
            finally
            {
                if (fs != null)
                {
                    fs.Close();
                }
            }

        }
    }
}

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