摘要：In general, we shall see that recursion is a very powerful technique for dealing with hierarchical, treelike objects. 2008-01-03 1.The general form of a procedure definition is (define ( ) ) 2.The ge... 阅读全文

摘要：System.Web.HttpContext.Current.Server.MapPath(".") 阅读全文

摘要：msdn并没有详细的说明清楚，给了一个例子； Math.Round(3.44, 1); //Returns 3.4. Math.Round(3.45, 1); //Returns 3.4. Math.Round(3.46, 1); //Returns 3.5. 依照他的例子得到的是"五舍六入"，我改变了一下数字得到的结果将完全改变。 Math.Round(3.445, 1); //Returns... 阅读全文

摘要：一、提高性能的方法：1.Remember that database access is relatively expensive—itconsumes both time and resources.2.應用一個控件屬性多次是，最好先把屬性放到一個局部變量中二、處理錯誤1.防禦代碼In general, you should always check incoming parameters if the method is a public one—that is, it iscalled from outside the class. If it’s a method that isn’t 阅读全文