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：
Windows Azure: Service Bus Topics/Subscriptions入门 Service Bus Topics/Subscriptions提供基于发布/订阅模式的消息通信模型，如图所示： 与Service Bus Queues不一样的是， Topics(主题)/Subscr 阅读全文
