React微生命周期 使用微生命周期: < div xss=removed xss=removed> console . log ( ' element attached: ' , el , props ) } $update = { ( el , props , oldProps ) => console . log ( ' element updated: ' , el , props , oldProps ) } $detach = { ( el , oldProps ) => console . log ( ' element detached: ' , el , oldPr