这是我自己写的一个非常有用的程序，很多人买房子，买车办贷款，但是对还贷计算却非常头疼，你可以利用贷款还贷程序计算你每月甚至每年应该还的钱数，程序实现了等额本金和等额本息还贷的计算方法-that I wrote a very useful procedure, many people buy a house, car loans, but the calculation is very repayment headache, you can use the loan repayment proce