As soon as you call open on your request object, this property is set to 1.

一旦对请求对象调用open之后，这个属性就被设置为1。

youdao

This skips out the intermediary step of obtaining a ServiceReference, but does require that you call open after construction, in order to begin tracking services.

这就跳过了中间获得ServiceReference的几步，但是要求你在构造之后调用open，以便开始跟踪服务。

youdao

This skips out the intermediary step of obtaining a ServiceReference, but does require that you call open after construction, in order to begin tracking services.

这就跳过了中间获得ServiceReference的几步，但是要求你在构造之后调用open，以便开始跟踪服务。

youdao