The allusion of Cao Chong's image is taken from the History of the Three Kingdoms: Chong Shao Cong Cha, born at the age of five or six, has the wisdom of an adult. At that time, Sun Quan once gave birth to a giant elephant, and Mao wanted to know its weight. It is impossible to be reasonable under the group he visited. Chong said, "Put it on a big ship, carve its water mark, weigh it, transport it, and you will know." Great joy, that is, how to implement it.