一个有关个人借贷的JAVA程序，根据给定的贷款数和时间，计算出应还得数额- a good algorithm

借贷管理系统基于ThinkPHP3.2.3开发，前端使用H+框架，添加借款后，自动计算每月的回款日期，并可通过统计表和柱状图直观的显示还款情况-Lending management system based on ThinkPHP3.2.3 development, front-end use of H+ framework, add the loan, automatically calculate the monthly payment date, and through the stati