此代码还举例说明了指定回调的参数的一种方法：作为一个匿名列表，具有到作为第一个 参数的回调的引用，随后是所需的参数。

This code also demonstrates one way to specify arguments to a callback: as an anonymous list, with a reference to the callback invoked as the first element, followed by the required parameters.

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匿名对象可以通过方法参数发送。

You can send anonymous objects as method arguments.

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session参数可以为空，这表示该方法将创建一个单独的匿名会话，请创建该会话，然后在一次方法调用中保存它。

The session parameter can be null, meaning that the method will create a separate anonymous session, do the work and then save the session in one method call.

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