QFont("Helvetica", 9)); QVector<double> x(101),y(101); //图形为y=x^3 for(int i=0;i<101;i++) { x[i] = i/5.0
4b6c079bc3aed35b2f161c377e208185f9310a69 Open Source) on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 8.5.0 20210514 (Red Hat 8 .5.0