In Lurking, Yu Zecheng defeated Li Ya with a lot of gold bars. Stationmaster, Yuan, etc. Everyone represents a corresponding social role and is vividly portrayed in the once popular famous spy war drama Latency. With the growth of age, the understanding of these roles played by these actors in those years is becoming more and more profound. Among these many roles, Li Ya is a very special person. He is the only villain who doesn't fight for his own interests. He has outstanding ability and works hard for his dreams. If he hadn't chosen the wrong path, he would have been even better than Yu Zecheng. There was an emotional episode in the play, which is still fresh in my memory. When Lin, who believed in money and denied others, cooperated with Li Ya and was about to catch a group of progressives, Lin said to Li Ya: What about these people caught today? They can contribute to you. Li Ya replied: Lao Yuan, you don't know something. I don't want to make a contribution by doing so. It is to destroy all enemies for the party and the country and to live a good life for the children. If we exclude the background of the opposition between the enemy and ourselves in the whole TV series, Li Ya's remarks can be said to be gripping and embarrassing. Li Ya is not greedy for money and lustful. Even if her side was defeated in the end, she also asked to stay and carry out the "Yellowbird Plan". Needless to say, Li Ya's ability, he has been lurking in Yan 'an for many years under the code name of "Buddhist Xiaosheng". After returning to Tianjin Railway Station, under the siege of Shandong and Shandong, I defended my ideal and fought side by side with my colleagues. Even if he hadn't been dragged down the stairs in the end, he had already defeated Yu Zecheng. After all, Li Ya lost. Where did he lose? Apart from the fundamental mistakes in the route, I think there are two points that can reflect the problem. First of all, Li Ya once sent a bracelet to Yu Zecheng and asked Yu Zecheng to go back and give it to Ping Cui. This shows that Li Ya is not ignorant of the world, and he also knows that people can't just eat by ideals. The ideal is to be realized, and the realization of the ideal requires means. Secondly, Yu Zecheng, opposite him, has always been suspected in front of the cunning stationmaster, and the TV series is also introduced through narration. The webmaster is just "too lazy to doubt". In the final analysis, it is because Yu Zecheng has accumulated a lot of wealth for webmasters. A "Steppunk" car-"Chennault's car" has been replaced by shiny gold bars and entered the stationmaster's warehouse. Even the stationmaster's wife says that promoting Yu Zecheng is good for us. Although Li Ya knows the world very well, he didn't send gold bars to the stationmaster for his own ideal, which is his only mistake. Otherwise, if the webmaster remained neutral between Li Ya and Yu Zecheng, Li Ya would have captured Lao Yu alive. The investment varieties in the gold market are mainly divided into physical gold investment and gold investment derivatives derived from physical gold. Derivatives mainly include gold futures and gold options, and physical gold investment mainly includes gold bars, coins and gold ornaments.