Guess a number in your early twenties! Between 0 and 27, please give a reason

26, compared to 20 in writing, there is an extra vertical line on the number 0, just like an extra head.

In modern social life, there are many occasions where numbers need to be used. ID number, student number, bank account number, phone number, postal code, book number... I am afraid there are too many specific applications of numbers to list a complete list, but in summary, the main functions of numbers can be summarized into two: measurement and serial number.

Chinese character number form: the inherent writing form of Chinese. The basic symbols are "zero, one, two, three, four, five, six, seven, eight, nine, ten, one hundred, one thousand, ten thousand, billion "wait.

Arabic numeral format: Since the end of the 19th century and the beginning of the 20th century, with the spread of Western learning to the east and China's modernization process, it has been gradually implemented in Chinese. The basic symbols are "0, 1, 2, 3, 4, 5, 6, 7, 8, 9” etc.

In actual use, Arabic numerals can also use auxiliary symbols such as decimal point ".", multi-digit section break ",", dash "-" and separator "∶" as needed. Numbers written in Chinese characters do not contain other auxiliary symbols. It can be seen that there is a rough correspondence between the above two expression forms of numbers and the main expression functions of numbers