Typos, as the name implies, refer to words such as typos. Other characters were also called "white characters" in ancient times. The so-called "Mr. Bai Zi" is a person who often reads or writes typos. There are subjective and objective reasons for the appearance of typos. Subjective reasons are not paying attention, not reading carefully, not writing, not looking up the dictionary, being careless and sloppy.
One is to make something out of nothing, that is, to write a wrong stroke, stroke or structure of a word, which seems like a word but not a word. This is called "typo". If someone writes "nine" in the upper right corner of the word "dye" as "pill", writes "Hou" in the right half of the word "monkey", writes a little more in the upper right corner of the word "drag", or writes "heart" under the word "filter" as "karma", these are all typos.
Mainly because many people think that writing Chinese characters is a personal matter, it doesn't matter if you have an extra pen, as long as you or others can understand how to write; Or some people don't know the structure and writing of some words at all. Of course, sometimes they write a word, but they make a mistake when they write it. For example, some people write the radical "righteousness" of "Wu" as "case", "worm" as "article", or "perseverance" as "perseverance" and so on. Some people, especially the operators of individual shops, write some nonstandard simplified words or other words for convenience.