@Morningstar , 关于过滤创业板,一个小建议:sql查询应该比List遍历逐一排除,效率能高点
```
def pick_stocks(context, data):
q = query(valuation.code)
......
if g.filter_gem:
q = q.filter(~valuation.code.like('300%')) #排除创业版
# 会转化成sql查询语句: where valuation.code not like '300%'
q = q.order_by(
......
# 原过滤方法注释掉
# if g.filter_gem:
# stock_list = filter_gem_stock(context, stock_list)
```
2016-11-19