因子表达式
由bigquant创建，最终由bigquant 被浏览 125 用户
一阳穿多线
https://bigquant.com/experimentshare/152e843a6d1d4312b4e387c14b1b5a9c
跨表字段抽取构建因子
https://bigquant.com/experimentshare/394959a9ed6c482cad847bcde08ceaa5
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由bigquant创建，最终由bigquant 被浏览 125 用户
https://bigquant.com/experimentshare/152e843a6d1d4312b4e387c14b1b5a9c
https://bigquant.com/experimentshare/394959a9ed6c482cad847bcde08ceaa5
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