《肚痛帖》为唐代书法家张旭所作,内容只有三十个字:“忽肚痛不可堪,不知是冷热所致,欲服大黄汤,冷热俱有益。如何为计,非临床。”从这样的内容来看,很可能确实是张旭某次肚痛时写的。其用笔一开始还比较规整,但是越到后来越狂放(也许是肚子痛得忍不住了),完全超出了一般书法的常规,可谓惊世骇俗。当然,由于《肚痛帖》毕竟只是刻帖,而且不同年代的刻帖中笔画的细节也有很多出入,所以该 “Abdominal pain post” for the Tang Dynasty calligrapher Zhang Xu made the content of only thirty words: “Suddenly the pain can not be crushed, I do not know caused by hot and cold, want to serve rhubarb soup, hot and cold are benefits .How to count, Non-clinical. ”“ From this point of view, it is likely that Zhang Xu wrote a stomach pain. The beginning of its pen is still more structured, but the more the more the more the more the more the past (perhaps the stomach pain could not bear it), completely beyond the normal calligraphy, can be described as shocking. Of course, because ”stomach pain posts" are only carved posts after all, and there are many differences in the details of strokes in different ages,