安卓计算器，含有科学计算器、单位转换、汇率转换、贷款计算等功能-Andrews calculator, containing scientific calculator, unit converter, currency converter, loan calculator and other functions

用Studio64->Java所编写的Android软件 功能：单位转换，进制数之间的转换-Android apps by using java I used studio64 to create this apps function: convert units and number bases