How to read a value using QSetting if the value contains comma character [duplicate]

问题

This question already has an answer here:

QSettings::IniFormat values with “,” returned as QStringList (1 answer)

Closed 5 years ago.

In my QT project I am reading values from .ini file using QSettings. If the value contains comma character QSettings is not able to read it. How should I read such values?

回答1:

Comma character is treated as list separator by QSettings. INI values with commas are parsed as string lists. You can convert a string list back to original string as follows:

QVariant value = settings.value("key");
QString string;
if (value.type() == QVariant::StringList) {
  string = value.toStringList().join(",");    
} else {
  string = value.toString();
}

回答2:

simply create a ini file with qsettings and a comma in configuration string. Characters being control chars for ini-files will be escaped by % percent sign.

来源：https://stackoverflow.com/questions/18052930/how-to-read-a-value-using-qsetting-if-the-value-contains-comma-character