798.88就是7.9888%12.31到1.3日都是这个价
1:8.0847http://www.bank-of-china.com/cn/common/service.jsp?category=ROOT%3E%D6%D0%D0%D0%D7%DC%D0%D0%3E%D0%D0%C7%E9%B7%D6%CE%F6%CA%D2%3E%D6%D0%D0%D0%BB%E3%C6%C0%3E%CD%E2%BB%E3%C5%C6%BC%DB
1:8.067
1:8.0847
8.1