QString int

 

QString turn int

Direct call toInt () function

Example:

QString str("100");

int tmp = str.toInt();

 

or:

bool ok;

QString str("100");

int tmp = str.toInt(&ok);

Note: ok indicates whether the conversion is successful, success is ok is true, fails ok to false.

2) int turn QString

QString::number();

 

Example:

int tmp = 100;

QString str = QString::number(tmp);