A.INI文件内容:

[DataBase]

Server=127.0.0.1

User=sa

Password=123

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定义共用方法

public class OperatorFile    {        [DllImport("kernel32")] //引入“shell32.dll”API文件        public static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal,                                                         int size, string filePath);        /// 
        ///   从INI文件中读取指定节点的内容        /// 
        ///  INI节点         ///  节点下的项         ///  没有找到内容时返回的默认值         ///  要读取的INI文件         /// 
     
       读取的节点内容 
             public static string GetIniFileString(string section, string key, string def, string filePath)        {            StringBuilder temp = new StringBuilder(1024);            GetPrivateProfileString(section, key, def, temp, 1024, filePath);            return temp.ToString();        }    }

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调用:

string strServer = OperatorFile.GetIniFileString("DataBase", "Server", "",                                                             Application.StartupPath + "\\A.ini");            //获取登录用户            string strUserID = OperatorFile.GetIniFileString("DataBase", "User", "",                                                             Application.StartupPath + "\\Aini");            //获取登录密码            string strPwd = OperatorFile.GetIniFileString("DataBase", "Password", "",                                                          Application.StartupPath + "\\A.ini");