“双钩书法”是以笔单线直接写出某种书体的空心字,此法源于唐代,当时由于没有印刷技术,人们为了能使名家书法作品得以流传,就按作品的原样勾勒出空心字,然后再填上黑墨,以使观者得到近似真迹的作品。后来这种摹写方式成为了人们学习书法的一种方法,并发展成为我国璀璨的书法艺术瑰宝,南宋的著名文学家和音乐家姜夔在《续书谱》中称: “Double hook calligraphy ” is a simple line to write out the hollow letter of a book, this method originated in the Tang Dynasty, at that time due to the lack of printing technology, people in order to make the famous calligraphy can be spread, according to the original outline of the work Empty the word, and then filled with black ink, so that viewers get works of similar authenticity. Later, this mode of copywriting became a method for people to learn calligraphy and developed into a bright gem of calligraphy in our country. Jiang Yong, a well-known writer and musician in the Southern Song Dynasty,