In the foreign exchange quotation table of the bank, the cash buying price/cash buying price/cash selling price are all expressed by the bank as the main body. Cash refers to freely convertible bills of exchange, checks and other foreign currency bills; Cash is tangible foreign banknotes and coins. Among them: ① Spot buying price (foreign exchange buying price) is the price at which banks buy foreign exchange; The buying price of cash (the buying price of paper money) is the price at which banks buy foreign currency cash; (3) spot selling price is the price at which banks sell foreign exchange; (4) Cash selling price (bill selling price) is the price at which banks sell foreign currency cash.