堆栈(Stack)就是栈
select OrderSn from ORDER_Tracking group by OrderSn having count(1)>=2
HttpClient httpclient = new HttpClient();
var ret = httpclient.GetAsync("https://www.baidu.com/");
var Content = ret.Result.Content.ReadAsStringAsync().Result;
UTF-8编码的文字可以在各国各种支持UTF-8字符集的浏览器上显示
摘要：
CREATE FUNCTION [dbo].[GetWeight] ( @Value decimal(18,3)--重量/体积重 ) returns decimal(18,1) as begin --顺丰重量/体积重以0.5kg为单位向上取值(小数点后两位4舍5入) declare @Weight decimal(18,3) select @Weight= case when @Value<=1 阅读全文
