摘要:
1.wcf怎么记录详细错误日志?调用wcf时日志记录如下:System.ServiceModel.FaultException: The server was unable to process the request due to an internal error. For more infor... 阅读全文
摘要:
委托就像一个占位符"{0}",等待传入一个具体的方法委托又好像只定义了一个方法的接口,等待具体的实现namespace ConsoleApplication1{ //c#1定义委托 public delegate int CalculatorDelegate(int a, int b);... 阅读全文
摘要:
1.统计消费记录中的收入与支出select sum(case when Amount> 0 then Amount else 0 end) as c0, sum(case when Amount <0 then Amount else 0 end ) as c1 from Orders其它DBCC... 阅读全文