Revolving line means that once the user pays off the previous loan, he can use the loan line again during the credit period of the loan. This mechanism allows users to borrow and repay flexibly during the loan period, providing them with continuous financial support. Lenders usually set a certain repayment period, during which users can reuse the revolving line. This design helps to meet the short-term and repeated capital needs of users and improve the convenience of borrowing.