According to the number of components in Chinese characters, Chinese characters can be divided into single words and combined words. A monograph has only one component.

Monosyllabic writing means that a Chinese character has only one form, not two or more forms. Most of these characters are simple hieroglyphs and ideographs. Because this kind of words evolved from pictures, each word is a whole. For example, the sun, the moon, mountains, water, cows, sheep, horses, dogs, horses, people, men, children, horses and arrows are all unique hieroglyphics; Such as Tian, Li, Shang, Xia, Yi, Er, San, Yi (IV), Jian and Chen are all unique ideograms. A character should not be divided into two or more parts. Among them, components should be etymologically independent. Combination characters have multiple parts. According to the orientation relationship between components, the structure of a single character is also called a single structure. There are mainly the following 12 combinations of Chinese characters: 1. Left and right structures such as: earning, defending, resting, and being big. 2. Upper and lower structures such as branches, seedlings, seeds and stomach. 3. Left, middle and right structures, such as lakes, feet and splashes. Xie 4. The upper, middle and lower structures are as follows: Ji, Bing, Yan 5. Semi-closed structure: (1) Upper right closed structure such as: sentence, ke, si, formula (2) Upper left closed structure such as: temple, sick house, Nepal (3) Lower left closed structure such as: building, joint, blanket, etc.