As the apparent creation tendency,the skill of “taking writings as poem” was initiated by Han Yu.It was Ou Yangxiu who first realized Han Yu's skill of “taking writings as poem”,while it was Chen Shidao who first put forward this term.As the summary of the general creation characters of poetry in Song dynasty,it has been gradually generalized by people.The general connotation is as what Yan Yu said—“taking writings as poem,taking talent and learning as poem and comments as poem”.Therefore the skill of “taking writin...