How write numbers

[A Former User]

I'd like writing convert a number in a Qstring in this way:
if the numbers is: 7.4

I would like convert in this way:
07.40

[mad-hatter]

From the QString header.

   QString &QString::prepend(const QString &str)
   QString &QString::append(const QString &str)

[aha_1980]

@vale88

#include <QDebug>

int main(int argc, char *argv[])
{
    double d = 7.4;
    QString s = QString("%1").arg(d, 5, 'f', 2, QChar('0'));
    qDebug() << s;
}