当初为了买房子签合同，自己写了个小程序，主要是为了比较等额法和递减法之间的差价，比较简单，相信战友们都能看懂，于是是upload上来了，有兴趣的看看。有问题可以QQ:158679138联系。用了xpmenu控件。-The original contract to buy a house that he wrote a small program, mainly to compare the matching method and the difference between the law of