雨渐渐

摘要： declare @temp_table table ( bookID VARCHAR(10) primary key, book_price float default null, bookName varchar(50) ) insert into @temp_table values('1',50,'c#') insert into @temp_table values('2',null ,'c') select bookID AS '书的编号',isnull(book_price,0) as '书的价 阅读全文

摘要： #region 每天定点启动的逻辑DateTime dtTomorrow = DateTime.Now.AddDays(1);DateTime date = dtTomorrow.Date;date = date.AddHours(5); TimeSpan ts = date - DateTime.Now; Console.WriteLine("休眠 "+ts +" 启动"); Thread.Sleep(ts); #endregion5点启动 阅读全文