Which Chinese characters do not have traditional characters?

There are only a very small number of Chinese characters that do not have traditional characters, mainly including some very simple characters and some specific ones. Specifically, these are characters composed of simple strokes, such as "人", "口", "手", "日", etc.; and some simplified Chinese characters that have been commonly used since ancient times. and some simplified Chinese characters that have been commonly used since ancient times, such as "礼", "习", "干", and "专". "and so on. These Chinese characters have been used throughout history and have not been traditionalized or simplified.