  I suggest a naive solution for the inflation and reheating problems of the
very early universe. I completely calculate the time evolutions of the
inflation and reheating processes through a new technique. The numerical
results not only perfectly fit all of the measured data of the inflation, but
also clearly show the slow-roll characteristic of the inflation and the
generation mechanism of the inflaton mass. It particular, this model explicitly
reveals the relationships among the inflation, reheating and particle physics,
and it also predicts that $r_{0.002}$ is one to two order of magnitude smaller
than its current upper bound, the reheating duration is $\approx 1.1$ times the
inflaton lifetime and so on. Finally, it is expectable to test the model in the
near future.
