If no objects are available, a new HttpApplication object is created.
如果没有可用对象，则创建一个新的HttpApplication对象。
In this method you'll wire up event handlers to the appropriate HttpApplication events.
在此方法中，您将把事件处理程序绑定到相应的HttpApplication事件。
By design, the HttpApplication object looks for a class named after the requested ASPX file.
设计时，HttpApplication对象查找一个按请求ASPX文件命名的类。
应用推荐