1 std::unordered_set 元素无特定顺序的hash容器 D:\XTRANS\m98_rtc\ndrtc-webrtc\src\third_party\protobuf\src\google\protobuf\descriptor.cc #define HASH_MAP std::unordered_map #define HASH_SET std::unordered_set #define HASH_FXN