2, bank loans, refers to the bank according to the national policy at a certain interest rate to people in need of funds, and agreed to return a certain period of economic behavior. Moreover, in different countries and different development periods of a country, the types of loans classified according to various standards are also different. For example, industrial and commercial loans in the United States mainly include ordinary loan limits, working capital loans, standby loan commitments, and project loans. In Britain, industrial and commercial loans mostly take the form of discounted bills, credit accounts and overdraft accounts.