Ioc：The basic pattern for integrating Autofac into your application
The basic pattern for integrating Autofac into your application is:
- Structure your app with inversion of control (IoC) in mind.
- Add Autofac references.
- At application startup...
- Create a ContainerBuilder.
- Register components.
- Build the container and store it for later use.
- During application execution...
- Create a lifetime scope from the container.
- Use the lifetime scope to resolve instances of the components.
