CurStr = input() if CurStr[:3] == "RMB": print("USD{:.2f}".format(eval(CurStr[3:])/6.78)) elif CurStr[:3] in [‘USD‘]: print("RMB{:.2f}".format(eval(CurStr[3:])*6.78))
【Python】从汇率转换算法谈起
原文：https://www.cnblogs.com/guangluwutu/p/9787541.html
