摘要: 与sql聚合函数相似,会屏蔽null table.Compute("max(ColumnName)", "true"); table.Compute("min(ColumnName)", "true"); table.Compute("avg(ColumnName)", "true"); table 阅读全文
posted @ 2019-11-26 20:10 vvull 阅读(911) 评论(0) 推荐(0)