[]
=0
//ԨԷĹһЩв,⵽ֱӷ

ַת=0
//ʹ󲿷ַͨȡɱԵַ(ʤַ,ǿƱĻַ)ʧЧ

ʤԴ=0
//ͨƼĴʤ