There are many sayings about Cao Cao's fine print "A Xin". In ancient times, people had an inexplicable attachment to boys, especially those who gave birth to boys. To survive, they will have a nickname or nickname. It is said that Cao Cao's father, Cao Song, was originally Xiahou's, and later adopted him to Cao Teng. When Cao Song gave birth to Cao Cao, Xiahou's family had no ancestral temple, and Cao Cao was afraid that Xiahou's family would know how to hide. Over time, Cao Cao hid himself.
Of course, this is just a popular saying. Some reasons have been verified by some scholars, and some are not valid. The most important thing is the malicious description of Cao Cao in Pei Songzhi's Biography of Cao Cao. The content of this book is very exaggerated. Many things are described to set off the atmosphere of the novel, some of which are not true, but they are denounced as calling Cao Cao "A" in the book.
Coupled with Cao Cao's suspicious, treacherous and scheming personality, Wu Dongren has great prejudice against Cao Cao. From history to the present, it first came from storytellers. Over time, some far-reaching historical classics were also called Cao Cao, and the nickname of a generation of lean men was called down.
Obviously, the name "Shun" is not pleasant to listen to, but it is obviously the prejudice of some literati against Cao Cao in history. On the other hand, it is also the abbreviation of Cao Cao in history.