Afterwards, A Bao gradually paid attention to the role of the interest-free period. Originally, credit cards were created for "spending future money", but in A Bao's hands, they were shedding their singleness as a consumption tool and transforming into fashionable financial management tools. Originally, due to work relations, A Bao usually had a large consumption and frequent capital turnover, and often had阶段性large idle funds. If not properly utilized,