比如在onMessage里接受到參數(shù),根據(jù)參數(shù)實(shí)例化了對(duì)象并處理完了業(yè)務(wù),然后,實(shí)例化的對(duì)象會(huì)被自動(dòng)回收嗎?還是需要手動(dòng)unset?
函數(shù)里的臨時(shí)變量都會(huì)自動(dòng)回收,不用unset