读取二进制文档的一些方法

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

namespace ISEX.NET
{    
    /// <summary>
    /// 二进制文件的操作
    /// </summary>
    class CFile
    {
        /// <summary>
        /// 创建文本到文件
        /// </summary>
        /// <param name="path">文件路径</param>
        /// <param name="arrystr">文本数组</param>
        public void writeFile(string path,string[] arrystr)
        {
            using (StreamWriter sw = File.CreateText(path))
            {
                foreach (string str in arrystr)
                {
                   sw.WriteLine(str);
                }
            }
        }

        /// <summary>
        /// 删除指定文件
        /// </summary>
        /// <param name="path">文件路径</param>
        public void deleteFile(string path)
        {
            File.Delete(path);
        }

        /// <summary>
        /// 读取文件中的文本到arrylist
        /// </summary>
        /// <param name="path">文件路径</param>
        /// <returns>返回文本内容到arrylist中</returns>
        public ArrayList  readFile(string path)
        {
            ArrayList al = new ArrayList();
            using (StreamReader sr = File.OpenText(path))
            {
                String input;
                while ((input = sr.ReadLine()) != null)
                {
                    al.Add(input);
                }
            }
            return al;
        }

        /// <summary>
        /// 读取文件中的一条文本
        /// </summary>
        /// <param name="path">文件路径</param>
        /// <returns>返回文本内容到string</returns>
        public string readoneFile(string path)
        {
            using (StreamReader sr = File.OpenText(path))
            {
                String input;
                input = sr.ReadLine();
                return input;
            }
        }
    }
}