状态保持

状态保持(keep state)是一个十分有用的命令，但很多人会在这个问题上纠缠不清，下面是我们列举过的一个例子： block in all

There are a number of other features which may help reduce the risks of trying to keep state for HTTP.

有许多其他特性有助于减少维护 HTTP 状态带来的风险。

But Ajax applications tend to force an application to maintain a connection to a user for long periods of time to keep applications responsive and keep state tracking easy to code.

但是Ajax应用程序可能会迫使应用程序长期维持与用户的连接，这样应用程序才能进行响应并使状态跟踪代码比较容易编写。

Rules keep state to extend their context across their history of invocations, enabling decisions or computations that consider more than just the arguments passed on the current invocation.

规则可通过保存状态来将其上下文扩展到整个调用历史，支持依据传递到当前调用的参数之外的其他因素进行决策和计算。