A 300-round battle was a common online term that referred to a battle that lasted for 300 rounds. It usually referred to a battle between two people. In novels, the protagonist often fought with the enemy for a long time and finally won. During the Three Kingdoms period, there were two people who were known as the representatives of the " 300 rounds of war ". They were the Prime Minister of Shu Han, Zhuge Liang, and the General of Wu, Lu Su. In the Romance of the Three Kingdoms, Zhuge Liang and Lu Su fought fiercely for three centuries in the Battle of Red Cliff, which was known as the "Three Hundred Rounds of War". In addition, there were many other characters in the novel who were described as being able to fight for more than 300 rounds, such as Cao Cao, Guan Yu, Zhang Fei, etc.