Discuss / Python / findNumber
Back

findNumber

Topic source

装僵尸的大海

#1 Created at ... [Delete] [Delete and Lock User]

有哪位大神能解释一下sql = ['select %s _num_ from `%s`' % (selectField, cls.__table__)]这句SQL中的_num_用法吗，还有
 rs[0]['_num_']。这个实在网上找不到，理解不了为什么会有_num_

_臭_鼠-

#2 Created at ... [Delete] [Delete and Lock User]

_num_ 就是查出来的表示数量的字段，像select count(*) as c from XXX，_num_相当于这条语句的c，这里省略了as 关键字

  • 1

Reply