为什么写在Global.asax.cs里的程序全部没有执行？？

我本地的配置文件如下：<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="" value="server=;uid=;pwd=;database= "/>
<add key="" value="server=;uid=;pwd=;database= "/>
</appSettings>
  <system.web>
    <compilation 
         defaultLanguage="c#"
         debug="true"
    />
        <httpRuntime maxRequestLength="10240" 
         useFullyQualifiedRedirectUrl="true"
         executionTimeout="45"/>
   
    <customErrors 
    mode="on" 
    />   
       <authentication mode="Forms">
    <forms name="PcpWeb" loginUrl="Admin\login.aspx" protection="All" timeout="120" />
    </authentication>
    <machineKey validationKey="AutoGenerate" decryptionKey="AutoGenerate" validation="SHA1" />
    <authorization>
        <allow users="*" /> 
    </authorization>
    <trace
        enabled="true"
        requestLimit="10"
        pageOutput="false"
        traceMode="SortByTime"
localOnly="true"
    />
    <sessionState 
            mode="InProc"
            stateConnectionString="tcpip=127.0.0.1:42424"
            sqlConnectionString="data source=127.0.0.1;Trusted_Connection=yes"
            cookieless="false" 
            timeout="20" 
    />
    <globalization 
            requestEncoding="GB2312" 
            responseEncoding="GB2312" 
   />
   
 </system.web>
<location path="Admin">
        <system.web> 
           <authorization>
              <allow users="admin" />
             <deny users="?" />
           </authorization>
        </system.web>
    </location> </configuration>