一个事件中使用大量的这种判断
this.params.owner_stock == 2 && delete this.params.owner_stock;
this.params.bid_stock == 2 && delete this.params.bid_stock;
this.params.agency_stock == 2 && delete this.params.agency_stock;
this.params.candidate_stock == 2 && delete this.params.candidate_stock;