JCMessageChannelItem 成员列表

成员的完整列表，这些成员属于 JCMessageChannelItem,包括所有继承而来的类成员

	atAll	JCMessageChannelItem
	atMe	JCMessageChannelItem
	atServerUidList	JCMessageChannelItem
	cookie	JCMessageChannelItem
	direction	JCMessageChannelItem
	displayName	JCMessageChannelItem
	duration	JCMessageChannelItem
	error	JCMessageChannelItem
	extraParams	JCMessageChannelItem
	fileSize	JCMessageChannelItem
	fileUri	JCMessageChannelItem
	groupId	JCMessageChannelItem
	isWithdrawal	JCMessageChannelItem
	messageId	JCMessageChannelItem
	messageType	JCMessageChannelItem
	senderUid	JCMessageChannelItem
	sentTime	JCMessageChannelItem
	serverMessageId	JCMessageChannelItem
	serverUid	JCMessageChannelItem
	state	JCMessageChannelItem
	text	JCMessageChannelItem
	thumbUri	JCMessageChannelItem
	time	JCMessageChannelItem
	type	JCMessageChannelItem
	userId	JCMessageChannelItem
	withdrawalMessageId	JCMessageChannelItem