文件内容:
[A]
a=1202[B]
B=1202[C]
c=2000
abc=china请问,分别读出a,B,c,abc的值.咋写啊.
StreamReader sr = new StreamReader(name);
while (sr.Peek()>=0)   
{
   uu3 = sr.ReadLine().Replace("a=","");
   uu  = sr.ReadLine().Replace("B=","");
   aa = sr.ReadLine().Replace ("c=","");}
这样不行吗?

解决方案 »

  1.   

    using System;
    using System.Drawing;
    using System.IO;
    using System.Runtime.InteropServices;
    using System.Text;
    using System.ComponentModel;
    using System.Collections;
    using System.Collections.Specialized;
    using System.Windows.Forms;namespace Loyee.IO
    {
        /// <summary>
        /// 一个模仿Delphi的TIniFile的类
        /// 修订:1.1 修正了对中文系统的支持。
        /// 1.2 增加了UpdateFile方法,实现了对Win9x的支持
        /// 1.3 增加了读写布尔,整数的操作
        /// 1.4 修正了写Ini虽然成功,但是会抛出异常的错误
        /// 1.5 ReadString返回的是Trim后的字符串
        /// 1.6 统一并扩大了读写缓冲区的大小
        /// </summary>
        public class IniFile
        {
            private string _FileName;
            /// <summary>
            /// INI文件名
            /// </summary>
            public string FileName
            {
                get{ return _FileName; }
                set{ _FileName = value; }
            }
            //声明读写INI文件的API函数
            [DllImport("kernel32.dll")]
            private static extern bool WritePrivateProfileString(string section,string key,string val,string filePath);
            [DllImport("kernel32.dll")]
            private static extern int GetPrivateProfileString(string section,string key,string def, byte[] retVal,int size,string filePath);        /// <summary>
            /// 类的构造函数,传递INI文件名
            /// </summary>
            /// <param name="AFileName">INI文件名</param>
            public IniFile(string AFileName)
            {
                // 判断文件是否存在
                FileInfo fileInfo=new FileInfo(AFileName);
                //Todo:搞清枚举的用法
                if ((!fileInfo.Exists)) //|| (FileAttributes.Directory in fileInfo.Attributes))
                    throw(new ApplicationException("Ini文件不存在"));
                //必须是完全路径,不能是相对路径
                FileName = fileInfo.FullName;
            }
            /// <summary>
            /// 类的构造函数,传递INI文件名
            /// </summary>
            /// <param name="AFileName">INI文件名</param>
            /// <param name="CreatedIfNotExists">指定如果文件不存在,是否创建</param>
            public IniFile(string AFileName, bool CreatedIfNotExists)
            {
                // 判断文件是否存在
                FileInfo fileInfo=new FileInfo(AFileName);
                //Todo:搞清枚举的用法
                if (!fileInfo.Exists)
                {
                    if (CreatedIfNotExists)
                    {
                        FileStream fs = System.IO.File.Create(AFileName);
                        fs.Close();
                    }
                    else
                    {
                        throw(new ApplicationException("Ini文件不存在"));
                    }
                }
                //必须是完全路径,不能是相对路径
                FileName = fileInfo.FullName;
            }
            //确保资源的释放
            ~IniFile()
            {
                UpdateFile();
            }        /// <summary>
            /// 向INI文件中写入字符串类型的数据
            /// </summary>
            /// <param name="Section">数据块</param>
            /// <param name="Ident">变量名</param>
            /// <param name="Value">值</param>
            public void WriteString(string Section,string Ident,string Value)
            {
                if (!WritePrivateProfileString(Section, Ident,Value,FileName))
                {
                    // Todo:抛出自定义的异常
                    throw(new ApplicationException("写Ini文件出错"));
                }
            }
            /// <summary>
            /// 读取INI文件中的字符串信息
            /// </summary>
            /// <param name="Section">数据块</param>
            /// <param name="Ident">变量名</param>
            /// <param name="Default">默认值</param>
            /// <returns>变量值</returns>
            public string ReadString(string Section,string Ident, string Default)
            {
                Byte[] Buffer=new Byte[1024];
                int bufLen=GetPrivateProfileString(Section,Ident,Default,Buffer, Buffer.GetUpperBound(0),FileName);
                //必须设定0(系统默认的代码页)的编码方式,否则无法支持中文
                string s=Encoding.GetEncoding(0).GetString(Buffer);
                s=s.Substring(0,bufLen);
                return s.Trim();
            }        /// <summary>
            /// 从INI文件中读取整数类型的变量值
            /// </summary>
            /// <param name="Section">数据块</param>
            /// <param name="Ident">变量名</param>
            /// <param name="Default">默认值</param>
            /// <returns>变量值</returns>
            public int ReadInteger(string Section, string Ident , int Default)
            {
                string intStr=ReadString(Section, Ident, Convert.ToString(Default));
                try
                {
                    return Convert.ToInt32(intStr);
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                    return Default;
                }
            }
      

  2.   


            /// <summary>
            /// 向INI文件中写入整数类型的数据
            /// </summary>
            /// <param name="Section">数据块</param>
            /// <param name="Ident">变量名</param>
            /// <param name="Value">值</param>
            public void WriteInteger(string Section,string Ident, int Value)
            {
                WriteString(Section, Ident, Value.ToString());
            }        /// <summary>
            /// 从INI文件中读取布尔类型的变量值
            /// </summary>
            /// <param name="Section">数据块</param>
            /// <param name="Ident">变量名</param>
            /// <param name="Default">默认值</param>
            /// <returns>变量值</returns>
            public bool ReadBool(string Section, string Ident, bool Default)
            {
                try
                {
                    return Convert.ToBoolean(ReadString(Section, Ident, Convert.ToString(Default) ));
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                    return Default;
                }
            }        /// <summary>
            /// 向INI文件中写入布尔类型的数据
            /// </summary>
            /// <param name="Section">数据块</param>
            /// <param name="Ident">变量名</param>
            /// <param name="Value">值</param>
            public void WriteBool(string Section, string Ident , bool Value)
            {
                WriteString(Section, Ident, Convert.ToString(Value));
            }        /// <summary>
            /// 从INI文件中读取指定数据块的所有变量名称
            /// </summary>
            /// <param name="Section">数据块</param>
            /// <param name="Idents">变量名称集合</param>
            public void ReadSection(string Section, StringCollection Idents)
            {
                Byte[] Buffer=new Byte[16384];
                //Idents.Clear();            int bufLen=GetPrivateProfileString(Section, null, null, Buffer, Buffer.GetUpperBound(0),
                    FileName);
                //对Section进行解析
                GetStringsFromBuffer(Buffer, bufLen, Idents);
            }        private void GetStringsFromBuffer(Byte[] Buffer, int bufLen, StringCollection Strings)
            {
                Strings.Clear();
                if (bufLen!=0)
                {
                    int start=0;
                    for(int i=0; i < bufLen; i++)
                    {
                        if ((Buffer[i] == 0) && ((i-start)>0))
                        {
                            String s=Encoding.GetEncoding(0).GetString(Buffer, start, i-start);
                            Strings.Add(s);
                            start=i+1;
                        }
                    }
                }
            }
            /// <summary>
            /// 从Ini文件中,读取所有的Sections的名称
            /// </summary>
            /// <param name="SectionList">Sections的名称集合</param>
            public void ReadSections(StringCollection SectionList)
            {
                //Note:必须得用Bytes来实现,StringBuilder只能取到第一个Section
                byte[] Buffer = new byte[65535];
                int bufLen=0;
                bufLen = GetPrivateProfileString(null, null, null,Buffer,
                    Buffer.GetUpperBound(0), FileName);
                GetStringsFromBuffer(Buffer, bufLen, SectionList);
            }
            /// <summary>
            /// 读取指定的Section的所有Value到列表中
            /// </summary>
            /// <param name="Section"></param>
            /// <param name="Values"></param>
            public void ReadSectionValues(string Section, NameValueCollection Values)
            {
                StringCollection KeyList=new StringCollection();
                ReadSection(Section, KeyList);
                Values.Clear();
                foreach(string key in KeyList)
                {
                    Values.Add(key, ReadString(Section, key, ""));
                }
            }
            /// <summary>
            /// 清除某个Section
            /// </summary>
            /// <param name="Section"></param>
            public void EraseSection(string Section)
            {
                //
                if (!WritePrivateProfileString(Section, null, null, FileName))
                {
                    throw(new ApplicationException("无法清除Ini文件中的Section"));
                }
            }
            /// <summary>
            /// 删除某个Section下的键
            /// </summary>
            /// <param name="Section"></param>
            /// <param name="Ident"></param>
            public void DeleteKey(string Section, string Ident)
            {
                WritePrivateProfileString(Section, Ident, null, FileName);
            }
            /// <summary>
            /// 执行完对Ini文件的修改之后,应该调用本方法更新缓冲区。
            /// Note:对于Win9X,来说需要实现UpdateFile方法将缓冲中的数据写入文件
            /// 在Win NT, 2000和XP上,都是直接写文件,没有缓冲,所以,无须实现UpdateFile
            /// </summary>
            public void UpdateFile()
            {
                WritePrivateProfileString(null, null, null, FileName);
            }        /// <summary>
            /// 检查某个Section下的某个键值是否存在
            /// </summary>
            /// <param name="Section"></param>
            /// <param name="Ident"></param>
            /// <returns></returns>
            public bool ValueExists(string Section, string Ident)
            {
                //
                StringCollection Idents=new StringCollection();
                ReadSection(Section, Idents);
                return Idents.IndexOf(Ident)>-1;
            }
        }
    }
      

  3.   

    StreamReader sr = new StreamReader(name);
    ArrayList ar = new ArrayList();
    string st;
    while (sr.Peek()>=0)   
    {
       st = sr.ReadLine();
       if (st.Trim().Length == 0)
       {
            continue;
       }
       
       st.Add(st);
    }uu3 = ar(1).Replace("a=","");
    uu  = ar(3).Replace("B=","");
    aa  = ar(5)..Replace("c=","");