There are more than 100,000 Chinese characters in China.
The international standard Unicode includes about 80,000 Chinese characters and is available for digital use. These include 8,105 universally standardized Chinese characters and more than 20,000 GBK character set Chinese characters.
The national valid invention patent "Multiple Chinese Characters and Graphic Symbols Input Method and Keyboard" (Multiple Code) uses an easy-to-remember human-machine dialogue method to encode all Chinese characters in Universal Code, and only requires 1 to 3 codes. It can find the required Chinese characters from 80,000 Chinese characters. Among them, the general standard Chinese characters are displayed on the first screen. It is not only suitable for daily typing and learning, but also particularly suitable for full-text entry of classics and ancient documents. It is the best input tool for full-text digitization.