数组1：
[{"uid":"63195","lastpost":"1415803996"},{"uid":"208313","lastpost":"1437619438"},{"uid":"132626","lastpost":"1429842712"},{"uid":"229007","lastpost":"1439433110"},{"uid":"229824","lastpost":"1431602605"},{"uid":"100947","lastpost":"1439300240"},{"uid":"235254","lastpost":"1417664548"},{"uid":"149544","lastpost":"1439392952"}]
数组2：
[{"uid":"63195","lastpost":"1415803996"},{"uid":"208313","lastpost":"1437619438"},{"uid":"132626","lastpost":"1429842712"},{"uid":"229007","lastpost":"1439433110"},{"uid":"229824","lastpost":"1431602605"},{"uid":"100947","lastpost":"1439300240"},{"uid":"235254","lastpost":"1417664548"},{"uid":"234514","lastpost":"1434684425"},{"uid":"149544","lastpost":"1439392952"}] 最佳答案
