Row Indicator Panel The row indicator panel represents a region displayed at the left edge of the View. The panel contains row indicator cells corresponding to different View sections (the band header panel, the column header panel, data rows, the Vi
django获取指定列的数据 model一般都是有多个属性的,但是很多时候我们又只需要查询特定的某一个,这个时候可以用到values和values_list [values()](https://docs.djangoproject.com/en/1.9/ref/models/querysets/#values) values()¶ values(*fields)¶ Returns a QuerySet that returns dictionaries, rather than model i