5.6.2 RTCIceCandidatePair字典5.6.2 RTCIceCandidatePair字典dictionary RTCIceCandidatePair { RTCIceCandidate local; RTCIceCandidate remote;}; 字典RTCIceCandidatePair成员 RTCIceCandidate类型的local:本地ICE 候选者。 RTCIceCandidate类型的remote:远程ICE 候选者。