A | 在我们做量化交易时，数据是所有策略的基石，不论是回测，还是我们的某些策略都需要用上历史数据，因此怎么在对自己的量化软件中补充数据是非常重要的，下面这篇文章将详细说明怎么做数据补充以及如若出错该怎么处理。一、补充数据库到底是为了做什么？QMT的“补充数据”功能，本质上是将交易所的历史行情数据提前下载并加密保存在你的本地电脑中。
B | (ECNS) -- A lion dance team from Hezhou, Guangxi Zhuang Autonomous Region, won the championship at the International Lion, Dragon, and Unicorn Dance Festival in Vietnam. Twenty-four teams from China, Vietnam, Malaysia, Thailand and South Korea competed, with the Hezhou Bilintang Lion & Dragon Group scoring the highest 9.4 points in the final. Team leader Hu Longying said they hope to showcase lion dance as a traditional skill while promoting cultural exchange. The group also shared techniques and drumming with participants from other countries and plans more overseas performances to promote Chinese folk culture. (By Helen Mo, intern Liu Shuangjing) 
。它的核心作用体现在以下三个方面：保障回测数据的完整性与高效性：回测的本质是遍历固定的...。
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Published on:01:20:05
