How do I change int to QString?

Write QString::number() Returns the string that converts the number n to its true value.

The function prototype is as follows: QString QString::number(long n, int base = 10)

The true value is set to 10 by default, and the range is [2,36]. If it is not a decimal, n is considered unsigned int.

int i = 42;
QString s = QString::number(i);