How many cups should a tea set have?

Different tea cultures have different numbers. Chaozhou kung fu tea advocates 3 cups, while Hong Kong kung fu tea advocates 4 cups. Japanese tea ceremony advocates 5 or 3 cups. There are also 6 and 7 cups tea parties. Nowadays, the tea feast is usually filled with cups according to the number of tea guests, and then matched with appropriate cups and teapots. So a pot of a cup, a pot of two cups of tea also a lot of. However, Lu Yu does not advocate a few people with a few cups, five people with three cups, seven people with five cups, may be convenient for each other to open heart.