我有如下几个IF条件。if(globals.chatroomInfoMap.containsKey(chatroomID)){if(messageData['name']!=null){globals.chatroomInfoMap[chatroomID].name=messageData['name'];print('object${globals.chatroomInfoMap[chatroomID].name}');}print('1');if(messageData['timestamp']!=null){globals.chatroomInfoMap[chatroomID].
