前台界面层(user facade):这一层就不多说了,信赖各人均可以理解,就是form。最后说一点儿:把层次之间的倚赖瓜葛限制好,如entity不成以挪用业务思维规律层…
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To illustrate the Session Facade pattern, let's consider a use case where the user can debit her checking account to make a loan payment.
为了说明会话虚包模式，我们来考虑这样一个用例，用户能将贷款支付的帐目记入她的支票帐户的借方。
I'll create a simple facade that will serve as the interface between the user and the database.
我将创建一个简单的facade，它将作为用户与数据库之间的接口。
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