Enumeration Members
NEMeetingChatMessageTypeCustom
NEMeetingChatMessageTypeCustom: 3
NEMeetingChatMessageTypeFile
NEMeetingChatMessageTypeFile: 1
NEMeetingChatMessageTypeImage
NEMeetingChatMessageTypeImage: 2
NEMeetingChatMessageTypeText
NEMeetingChatMessageTypeText: 0
自定义消息