Qt对ini文件的读写

研究了以下Qt下ini文件的读写，不废话，上干货。

写入ini文件

WriteIni.cpp

 void WriteIni::writeSettings()
 {
     QSettings settings("config.ini", QSettings::IniFormat); // 当前目录的INI文件

     settings.beginGroup("mountinfo");
     settings.setValue("mount",);
     settings.endGroup();

     settings.beginGroup("v");
     settings.setValue("v1",14.2);
     settings.setValue("v2",14.3);
     settings.setValue("v3",14.4);
     settings.setValue("v4",14.5);
     settings.setValue("v5",14.6);
     settings.setValue("v6",14.8);
     settings.endGroup();

     settings.beginGroup("a");
     settings.setValue("a1",2.0);
     settings.setValue("a2",2.1);
     settings.setValue("a3",2.2);
     settings.setValue("a4",2.3);
     settings.setValue("a5",2.4);
     settings.setValue("a6",2.5);
     settings.endGroup();

     settings.beginGroup("p");
     settings.setValue("p1",);
     settings.setValue("p2",);
     settings.setValue("p3",);
     settings.setValue("p4",);
     settings.setValue("p5",);
     settings.setValue("p6",);
     settings.endGroup();

     settings.beginGroup("j");
     settings.setValue("j1",4.8);
     settings.setValue("j2",4.9);
     settings.setValue("j3",4.7);
     settings.setValue("j4",4.6);
     settings.setValue("j5",4.5);
     settings.setValue("j6",4.4);
     settings.endGroup();
 }

读取ini文件

ReadConfig.cpp

 void GetConfigIni::getConfigMount()
 {
     QVariant strConfigValue;
     QString strConfigGroup = "";
     QString strConfigKey = "";

     QString strfile;

     //strfile = QDir::currentPath();//QCoreApplication::applicationDirPath();

     QString fileName = "config.ini";

     strfile += fileName;
     QSettings user_cfg(strfile,QSettings::IniFormat);
     user_cfg.setIniCodec("UTF-8");
     strConfigGroup = tr("mountinfo");
     user_cfg.beginGroup(strConfigGroup);

     strConfigKey = "mount";
     strConfigValue = user_cfg.value(strConfigKey);

     int Mount = strConfigValue.toInt();

      qDebug()<<"mount*************"<<Mount<<endl;

     user_cfg.endGroup();

     strConfigGroup = tr("v");
     user_cfg.beginGroup(strConfigGroup);

     strConfigKey = "v1";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "v1=*********"<<strConfigValue;

     strConfigKey = "v2";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "v2=*********"<<strConfigValue;

     strConfigKey = "v3";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "v3=*********"<<strConfigValue;

     strConfigKey = "v4";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "v4=*********"<<strConfigValue;

     strConfigKey = "v5";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "v5=*********"<<strConfigValue;

     strConfigKey = "v6";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "v6=*********"<<strConfigValue;

     user_cfg.endGroup();

     strConfigGroup = tr("a");
     user_cfg.beginGroup(strConfigGroup);

     strConfigKey = "a1";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "a1=*********"<<strConfigValue;

     strConfigKey = "a2";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "a2=*********"<<strConfigValue;

     strConfigKey = "a3";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "a3=*********"<<strConfigValue;

     strConfigKey = "a4";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "a4=*********"<<strConfigValue;

     strConfigKey = "a5";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "a5=*********"<<strConfigValue;

     strConfigKey = "a6";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "a6=*********"<<strConfigValue;

     user_cfg.endGroup();

     strConfigGroup = tr("p");
     user_cfg.beginGroup(strConfigGroup);

     strConfigKey = "p1";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "p1=*********"<<strConfigValue;

     strConfigKey = "p2";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "p2=*********"<<strConfigValue;

     strConfigKey = "p3";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "p3=*********"<<strConfigValue;

     strConfigKey = "p4";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "p4=*********"<<strConfigValue;

     strConfigKey = "p5";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "p5=*********"<<strConfigValue;

     strConfigKey = "p6";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "p6=*********"<<strConfigValue;

     user_cfg.endGroup();

     strConfigGroup = tr("j");
     user_cfg.beginGroup(strConfigGroup);

     strConfigKey = "j1";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "j1=*********"<<strConfigValue;

     strConfigKey = "j2";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "j2=*********"<<strConfigValue;

     strConfigKey = "j3";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "j3=*********"<<strConfigValue;

     strConfigKey = "j4";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "j4=*********"<<strConfigValue;

     strConfigKey = "j5";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "j5=*********"<<strConfigValue;

     strConfigKey = "j6";
     strConfigValue = user_cfg.value(strConfigKey);
     qDebug() << "j6=*********"<<strConfigValue;

     user_cfg.endGroup();

 }

ini文件

config.ini

 [mountinfo]
 mount=

 [v]
 v1=14.2
 v2=14.3
 v3=14.4
 v4=14.5
 v5=14.6
 v6=14.8

 [a]
 a1=
 a2=2.1
 a3=2.2
 a4=2.3
 a5=2.4
 a6=2.5

 [p]
 p1=
 p2=
 p3=
 p4=
 p5=
 p6=

 [j]
 j1=4.8
 j2=4.9
 j3=4.7
 j4=4.6
 j5=4.5
 j6=4.4

以上代码通过编译测试。