1. Usually we regard "A" in poker as "1", that is to say, "A" is the first card in each suit of poker, and it is also the largest card. It is also the highest level card in the entire deck.

2. A is the first letter at the beginning of the English alphabet, which means number one. So the 1 in poker is represented by A. In most foreign poker games, A is the largest. China's Landlord 2 is bigger than A, but poker was invented by foreign countries. In foreign countries, A is used to express big, and A is bigger than K.

Extended information:

Early playing cards were probably introduced to Europe from Egypt at the end of the 14th century.

In the 15th century, K was usually regarded as the highest card, and A was the smallest card. The current way of treating A as the largest and 2 as the smallest may have started after the French Revolution in the late 18th century.

“JOKER” is an American invention, and then spread back to Europe along with poker.

The origin of poker has a long history. People only know that poker came from foreign countries in Europe, but in fact paper toys originated in China.

As far back as the early Zhou Dynasty in ancient times, it is said that the young King Cheng of Zhou played a game of "cutting tung leaves to make a gui" in the palace with his younger brother Shu Yu. Paper had not been invented at that time, so leaves were used as toys. During the Tang and Song dynasties, China's ancestors invented a kind of playing cards that could be used for both games and gambling, which was called "Yi Zi Play".

There is also a legend that the general Han Xin invented a kind of playing cards for entertainment in the army in order to reduce the nostalgia of the soldiers. Because it was only the size of a leaf, it was called Ye Zixi. From the literati to the common people, everyone enjoys it. In the Ming and Qing dynasties, each deck of "Yi Zi Xi" playing cards had 40 cards, divided into 4 categories. There are many patterns on the cards, including people, birds, animals, flowers, birds, insects, fish, etc.

From the late Qing Dynasty to the Republic of China, playing cards were about 8 cm long and 2 cm wide, and people called them playing cards. Before and after the founding of the People's Republic of China, card gambling was still popular among the people in Chaoshan. The gameplay gradually changed from a simple arrangement to a variety of games. Each card was printed with a number from 1 to 10 points, or the chess characters "handsome, official, prime minister, handsome, handsome, official, and good-looking" were printed on it. There are 32 characters such as cars, divided into 4 colors: red, green, black and white, and 64 cards, as a permutation gamble for 2 to 4 people.

Baidu Encyclopedia - Poker