In the Romance of the Three Kingdoms, Cao Cao was called a traitor. This also shows that Cao Cao does have a treacherous side. He used the emperor as a vassal, swept away the competing vassals in the name of Emperor Xian of Han Dynasty, and finally became the biggest party among the three countries. When Zhuge Liang led hundreds of thousands of troops to wipe out the evil, he and Zhou Yu decided to unite against Cao. At this time, Pang Tong asked himself to surrender to Cao Cao, and Pang Tong did have a certain talent, almost as famous as Zhuge Liang as a genius in the world. Cao Cao was also familiar with Pang Tong's name. He wants to put such talents under his command, make such talents useful and unify the world for himself. Secondly, he can gather talents like Pang Tong and show his good reputation of loving talents. When Pang Tong arrived at Cao Cao's camp, he was treated by Cao Cao. Pang Tong was a very good actor. In the case that Cao Cao suffered from the northern soldiers not learning how to fight water, Pang Tong gave a plan to connect the ships together. Cao was tricked by Pang Tong and burned the camp. What I want to say here is what treatment Pang Tong will give him if he really takes refuge in Cao Cao, and what tricks can Pang Tong mix? As far as Cao Cao is concerned, he led hundreds of thousands of troops at that time and wanted to break through Wu's defense. Obviously, this is very difficult. He got Cai Yun, the general of Liu Biao's navy, and killed himself. Cao Cao, in a dilemma, was very happy to see Pang Tong surrender. If Pang Tong really surrendered to Cao Cao, he would give a better plan. Cao Cao wouldn't have lost hundreds of thousands of soldiers. Maybe Wu will soon be wiped out, and Pang Tong's position will be high. However, considering Cao Cao's promotion and reuse of some counselors, Pang Tong is called Hou Ting at best, and his treatment will not be very high. Because Cao Cao had a large group of advisers before the unified army attacked the State of Wu, among his advisers, only those who had followed him were valued, while others such as Xu Shu were ignored. It can also be seen from here that Cao Cao, who wants to draw other people's talents to his door, is generally idle, but he does not allow such talents to be used by others. This also shows how treacherous and selfish Cao Cao is. In other words, even if Pang Tong really surrendered to Cao Cao, he could not mix anything. At most, he will get a high-paying job for nothing.