"Pen name" is naturally used as a signature in written language. Most writers use pseudonyms when publishing articles or books. The most popular pen name is probably the May 4th period. For various reasons, many people are not as free to express their opinions as they are now, so "pen names" were born.
This name is different from others, just like a born Taoist, who feels free to come and go. It has the feeling of immortality, passing away like smoke and flying in the dark. Stand out among the pen names, it was once the pen name of the famous poet Xu Zhimo.
His "Farewell to Kang Bie" left an unforgettable image of Bai Yueguang in people's minds, with a fresh and refined name, harmonious tone and pleasant to listen to.