昵称选你自己喜欢的就好，但一般不要带zz、宗教信仰、暴力、恐怖等的主题，不要轻易站队。An RTCRtpTransceiver is a set of one RTP sender and a person RTP receiver which share an SDP mid attribute, which suggests they share the exact same SDP media m-line (representing a bidirectional SRTP stream).RFC 7273 suppli