说明：  做高频交易编程的朋友要在500毫秒内计算出结果，这是个计算程序运行消耗时间的程序模块，希望对做高频交易的朋友有用。以后打算写交易策略这方面的程序，我同时也上传了经典入门书籍《Quantitative Trading》（量化交易），也希望在这里能找到同样对高频交易有兴趣的朋友，如果你是，站内联系哦~~
(Friends do high frequency trading programming to calculate the results, in less than 500 milliseconds program modules is a calculation program run time-consuming, hopes friends do high frequency trading. After going to write a program trading strategies in this regard, and also hope can find here the same high frequency trading friend, if you are, the station Oh ~ ~)