ASP.NET杂谈-一切都从web.config说起（1）（开篇）
这个系列在我脑海中已经酝酿了很久，一直没有动手写，今天晚上终于下定决心，抽空也要把他写出来，其实主要是大家一起来探讨和交流ASP.NET编程。
原始的web.config信息
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首先我们新建一个ASP.NET Web应用程序，看看VS自动生成的web.config中有那些内容，如下：1: <?xml version="1.0" encoding="utf-8"?>
2:
3: <configuration>
4: <configSections>
5: <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
6: <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
7: <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
8: <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
9: <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere" />
10: <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" />
11: <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" />
12: <section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" />
13: </sectionGroup>
14: </sectionGroup>
15: </sectionGroup>
16: </configSections>
17: <appSettings/>
18: <connectionStrings/>
19: <system.web>
20: <!--
21: 设置 compilation debug="true" 可将调试符号插入
22: 已编译的页面中。但由于这会
23: 影响性能，因此只在开发过程中将此值
24: 设置为 true。
25: -->
26: <compilation debug="false">
27: <assemblies>
28: <add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
29: <add assembly="System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
30: <add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
31: <add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
32: </assemblies>
33: </compilation>
34: <!--
35: 通过 <authentication> 节可以配置 ASP.NET 用来
36: 识别进入用户的
37: 安全身份验证模式。
38: -->
39: <authentication mode="Windows" />
40: <!--
41: 如果在执行请求的过程中出现未处理的错误，
42: 则通过 <customErrors> 节可以配置相应的处理步骤。具体说来，
43: 开发人员通过该节可以配置
44: 要显示的 html 错误页
45: 以代替错误堆栈跟踪。
46:
47: <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
48: <error statusCode="403" redirect="NoAccess.htm" />
49: <error statusCode="404" redirect="FileNotFound.htm" />
50: </customErrors>
51: -->
52: <pages>
53: <controls>
54: <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
55: <add tagPr
补充：Web开发 , ASP.Net ,
