How to teach Chinese characters by yourself in ancient times? Do you have pinyin?

In ancient Chinese, the phonetic notation method used is the reverse tangent method, that is, taking two basic Chinese characters, combining the consonant of the first Chinese character with the vowel and tone of the second Chinese character to express the pronunciation of the Chinese character to be marked. The method of synthesizing two Chinese characters into a Chinese phonetic notation. It is a traditional phonetic notation method in China. Sometimes it is called inverse or tangent.

In the 8th year of the Republic of China (19 18), the phonetic notation method is still used as a tool for learning the pronunciation of Chinese characters in primary education in Taiwan Province province, and it is also used for inputting characters such as mobile phones and computers.

After the promulgation of 1958 "Chinese Pinyin Scheme", the use of phonetic symbols was abolished in mainland China. /kloc-in the 1970s, Singapore also abolished the use of phonetic symbols and switched to hanyu pinyin.

Hanyu Pinyin (Hanyu Pinyin) is the Latin scheme of Hanyu Pinyin in People's Republic of China (PRC), which was studied and formulated by the Hanyu Pinyin Scheme Committee of the former China Character Reform Committee (now the State Language Commission) during the character reform from 1955 to 1957. This pinyin scheme is mainly used to mark the pronunciation of Putonghua and Chinese as the phonetic symbol of Chinese characters.