(1)本程序为EXE可执行文件，多功能房屋贷款计算器。 (2)可计算每月还款额的组成成分，本金及利息 (3)可计算每月已还款总额及未还本金总额-(1) This program is an executable EXE file, multi-housing loan calculator. (2) calculate the monthly repayment amount of the composition, the principal and interest (3)