我已经使用这个feed很长时间了，我相信苹果在mac的一个小部件中也能做到这一点.但真正奇怪的是，我根本找不到它的任何文档，我试过谷歌和所有东西.
http://finance.yahoo.com/webservice/v1/symbols/allcurrencies/quote
我可以看到人们使用不同的参数，比如view=basic date=Ymd; currency=true，但很可怕，没有任何官方数据.
目前，我正在使用以下参数:
format=json and callback=list sometimes...
但这对我来说仍然是个谜.有没有人知道这件事的真实真相，因为雅虎似乎正试图将其隐藏在其他地方:)
From the research that I've done, there doesn't appear to be any documentation available for the API you're using. Depending on the data you're trying to get, I'd recommend using Yahoo's YQL API for accessing Yahoo Finance (An example can be found here). Alternatively, you could try using this well documented way to get CSV data from Yahoo Finance.
EDIT:
There has been some discussion on the Yahoo developer forums and it looks like there is no documentation (emphasis mine):
缺少文件的原因是we don't have a Finance API个.似乎有些人已经反向设计了一个用于提取金融数据的API，但他们这样做违反了我们的服务条款(没有重新分配金融数据)，因此我建议您避免使用这些Web服务.
At the same time, the URL you've listed can be accessed using the YQL console, though I'm not savvy enough to know how to extract URL parameters with it.