<%@ page language= "C #" autoeventwireup= "true" codefile= "Login.aspx.cs" inherits= "Login"%>
<%@ page language= "C #" autoeventwireup= "true" codebehing= "Login.aspx.cs" inherits= "Login"%>
@page means that you are using page pages, which are called ASPX pages.
Language= "C #" represents the programming language as C #
Autoeventwireup= "True" indicates whether certain special events are automatically associated with automatic binding page_* event methods
Codefile= "Default.aspx.cs" represents the code in that file (logical code)
Inherits= "Login" represents the default name for this page is login
Codebehing refers to the code-behind, that is, some logic code is placed in the Teamp.aspx.cs, in the generation of the site when the CS file will automatically generate DLL files, to achieve the purpose of not seeing the source code. Ahead of efficiency. Typically the name is named after the same ASPX page plus. cs. This means that CS is the real type of the file.
AutoEventWireup refers to whether the page automatic event callback.
CodeFile
Specifies the path to the code-behind file that refers to the page. This property is used with the Inherits property to associate a code-behind source file with a Web page. This property is valid only for compiled pages
<%@ page language= "C #" autoeventwireup= "true" codefile= "Login.aspx.cs" inherits= "Login"%>