打开交易图表，堆上十个技术指标，然后对着屏幕发呆不知道下一步怎么操作——这场景对交易员来说太熟悉了。如果把历史数据丢给计算机，告诉它“去试错”。赚了有奖励，亏了有惩罚。让它在不断的尝试和失败中学习，最终迭代出一个不说完美、但至少能逻辑自洽的交易策略。

A Holocaust survivor and a 10-year-old girl are among the at least 15 people killed during the terror attack at Sydney's Bondi Beach. by Connor Greene by Stephanie ...

Australian officials said a father and son killed at least 15 people at a Jewish holiday celebration. More than three dozen people were hospitalized, including a surviving gunman. Ukraine’s president ...

The declaration date is when a company announces its next dividend payment; it's also an option's expiration date. Once a dividend is declared, it becomes the company's legal responsibility to ...