时区瑕疵策略

<div class="bq-course-title"> 问题摘要：<br> </div> <div class="bq-course-text"> 超参搜索怎么搜索持仓天数？以默认stockranker模板为例<br> <br> </div> <div class="bq-course-team"> <img src=http://bigquant.com/asset-v1:plus+training03+2023-06+type@asset+block@守田备份.png class="bq-course-icon" alt="Course Staff Image #2" /> <div> <div class="bq-course-text">李兴果老师</div> <div class="bq-course-text">BigQuant策略工程师。</div> </div> </div>