如果变量引用的对象在另一个应用程序中，此测试无法确定该应用程序是已经终止对象还是只是使对象无效。
If the object your variable refers to is in another application, this test cannot determine whether that application has terminated or just invalidated the object.
如果变量引用的对象在另一个应用程序中，此测试无法确定该应用程序是已经终止对象还是只是使对象无效。
If the object your variable refers to is in another application, this test cannot determine whether that application has terminated or just invalidated the object.
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