How do you call the "A" of playing cards in the movie "S"?

A is ACE, and J, Q and K in playing cards are abbreviations of English Jack, Queen and King respectively.

Due to cultural differences, there are different understandings of the four colors of French poker. The French understand four colors as spears, hearts, squares and clove leaves, while the British understand four colors as spades, hearts, diamonds and clover. There has been a lot of debate about why these four patterns should be used as the colors of playing cards. There are two kinds of concentrated opinions: one is that these four colors represent the four major industries of society at that time, among which spades represent spears and symbolize soldiers; The heart represents the heart and symbolizes the priest; Square represents bricks and symbolizes craftsmen; Plum blossoms represent clove leaves and symbolize agriculture. This statement accords with the French understanding of color. Another way of saying it is that these four colors come from the patterns of ancient European divination utensils, in which spades represent olive leaves and symbolize peace; The heart shape symbolizes wisdom and love. The square is a diamond, symbolizing wealth; Plum blossom is a clover, which symbolizes luck. This statement is in line with the British understanding of color.