1、获取全部iSO标准货币的 参照汇率(包含当前汇率情况):
http://finance.yahoo.com/webservice/v1/symbols/allcurrencies/quote?format=json
2、获取单对货币 当前汇率信息
https://www.google.com/finance/converter?a=1&from=RUB&to=USD
http://download.finance.yahoo.com/d/quotes.csv?s=AUDUSD=X&f=nl1d1t1
4、获取 单对货币 汇率的历史信息
https://query1.finance.yahoo.com/v7/finance/chart/EURCNY=X?range=1mo&interval=5m&indicators=close&includeTimestamps=true&includePrePost=false&corsDomain=finance.yahoo.com
https://query2.finance.yahoo.com/v7/finance/chart/EURCNY=X?period2=1487312468&period1=1455517268&indicators=quote