就本例而言，我发现只须添加一个窗体，将它删除，然后强制执行垃圾收集，结果就会导致与被删除窗体相关联的许多类实例仍然处于活动状态。

For this example, I found that simply adding a form, deleting the form, and then forcing a garbage collection resulted in many class instances associated with the deleted form to still be alive.

youdao

用另外一个更合适的控件来完全替换当前控件可不容易，你需要删除这个控件，然后将一个新控件拖入窗体并重新配置它。

Completely replacing one control with another more relevant control is not as simple; you will need to delete an existing control, drop a new one on the form, and reconfigure it.

youdao

当作了这些修改以后，我使用调试器证实：当执行相同的测试案例时，与被删除的窗体相关联的对象计数减小。

After I made these code changes, I used the debugger to verify that the object count associated with the deleted form decreased when the same test case was executed.

youdao