1987 Lunar May, 2 1, from birth to 20 1 1, how old is the nominal age?

According to the tradition in China, a year is called a year from the beginning of the Lunar New Year to the New Year's Eve of the twelfth lunar month. However, fortune tellers have another algorithm, and the eight-character arrangement is based on beginning of spring. Knowing this rule, it is very convenient to talk about nominal age. -As long as you have lived in this year, whether it is one day or 360 days (one month more in leap year), it is 1 year. For example, there is a child whose birthday is on New Year's Eve, and he will be 2 years old on the first day of the next day, but he is still 2 years old until this year's New Year's Eve. Another child, a freshman, will be one year older. This is the whole concept of nominal age. In the old days (ancient times), there was no distinction between nominal age and nominal age, and there was no entanglement. Just because in modern times, children celebrate their birthdays, adults rank according to seniority, the elderly retire and so on. They are all calculated according to the age of one year in the solar calendar, and the situation is more complicated, and there is also a entanglement of imaginary years. In addition, don't simply say that the imaginary age is several years older than the real age. It's not hard to find.