logical function almost done
realized all p3 function
modified enroll and price button
fixed enroll page bug
changed for with underscore
fixed enroll page button bug once more
fixed price_list order and price activity end button
hello reconstruction --modifying store structure
fixed most bugs,go to sleep
fixed activities list set-yellow bug and price list begin button disabled bug
fix so many,a,totally sign up and price should seperate
p3 done.fix price info display bug,enroll refresh page function
Merge branch 'dev3-featrue' into dev3

1.dev3 merge dev3-feature when bugs fixed and p3 done.