  A new ''twice loose shoe'' method in the Wheeler-DeWitt equation of the
universe wave function on the cosmic scale factor a and a scalar field $\phi$
is suggested in this letter. We analysis the both affects come from the
tunneling effect of a and the potential well effect of $\phi$, and obtain the
initial values $a_0$ and $\phi_0$ about a primary closed universe which is born
with the largest probability in the quantum manner. Our result is able to
overcome the ''large field difficulty'' of the universe quantum creation
probability with only tunneling effect. This new born universe has to suffer a
startup of inflation, and then comes into the usual slow rolling inflation. The
universe with the largest probability maybe has a ''gentle'' inflation or an
eternal chaotic inflation, this depends on a new parameter q which describes
the tunneling character.
