bind guess_number and create number module
change guess_num to object function
guess more times
a new project parking lot
when park a car success,available decrease 1
delete available property
un pick a car
park boy can console many park lots
un park a car
park boy control many parks
park a car and un park a boy
nothing
Merge branch 'master' of https://github.com/FortuneZhang/parking

message .