Wealth-lab 网站上提供了很多datafeed，为什么不能下载？提示内容“You can find its zipped source code by clicking on "Attachments" on top of the page. Wealth-Lab Developer/Pro customers who can't see "Attachments" - please enter a new support ticket at wealth-lab.com” 是什么意思呢？ 求高手解答 提供的接口包括: •Google Finance static/streaming intraday/daily data provider (open source) •DDE Streaming provider (open source) •Bloomberg free static/streaming daily data provider •CBOE static data provider •Random data provider •MetaTrader static provider •Excel static provider •Finam static/streaming provider •YCharts Fundamental Data for Securities •Market Sentiment data provider •PiTrading static data provider •TradingBlox static data provider •QuoteMedia static data provider •Database static and streaming provider