One last important point about the DBManager class is the presence of the close method.
关于dbmanager类的最后一个要点是提供close方法。
As one might expect, the run method will wait for the report to finish running but it is important to point out it will not wait forever.
正如所预料的一样，run方法将等待报告完成运行，但是需要指出，它不会一直等待下去。
As one might expect, the run method will wait for the report to finish running but it is important to point out it will not wait forever.
正如所预料的一样，run方法将等待报告完成运行，但是需要指出，它不会一直等待下去。
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