使用web.config规则重定向到子域

<configuration>
  <system.webServer>
    <rewrite>
      <rules>
        <rule name="Redirect to Subdomain" stopProcessing="true">
          <match url="(.*)" />
          <conditions>
            <add input="{HTTP_HOST}" pattern="^(www\.)?example\.com$" />
          </conditions>
          <action type="Redirect" url="http://subdomain.example.com/{R:1}" redirectType="Permanent" />
        </rule>
      </rules>
    </rewrite>
  </system.webServer>
</configuration>