自己的手机账本备忘录开发，android应用程序。功能分为两部分：1.账本。可记账、查询历史消费记录、按月、年等分析消费情况。2.备忘录。类似iphone备忘录，可记录小tips。-Phone books memorandum development, android application. The functions are divided into two parts: 1. Books. Can be accounted for, search history and consumpti