A class can only have one destructor.
一个类只能有一个析构函数。
We also need to add a destructor to the class.
我们还需要添加一个析构函数的类。
A call is made to a destructor of incorrect type.
对错误类型的析构函数进行了调用。
It is possible for the destructor to throw an exception.
这是可能的析构函数抛出一个异常。
Although a destructor is a method, it cannot have parameters.
尽管析构函数是一种方法，但它不能有参数。
First, the destructor of the object that's being deleted is called.
首先，调用将要被删除的对象的析构函数。
So, different from the first example, we need to implement a destructor.
因此，从第一个例子不同，我们需要实现一个析构函数。
For example, a new slot cannot be requested on a destructor or finalizer.
例如，无法在析构函数或终结器上请求一个新的槽。
If the destructor is empty, this simply results in a loss of performance.
如果析构函数为空，只会导致性能降低。
This destructor would have to be called specifically before unsetting the parent class reference.
这种解构器必须在解除父类引用之前进行调用。
This destructor would have to be called specifically before unsetting the parent class reference.
这种解构器必须在解除父类引用之前进行调用。
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