qvtk override
时间: 2023-11-25 20:08:02 浏览: 37
`qvtk` is not a standard term or function in programming, so there is no specific way to override it. However, in general, method overriding is a concept in object-oriented programming where a derived class provides a different implementation for a method that is already defined in its base class. To override a method, you need to follow these steps:
1. Create a derived class that inherits from the base class.
2. Define a method with the same name, return type, and parameters as the method you want to override in the base class.
3. Add the `override` keyword before the method declaration in the derived class.
4. Implement the new functionality for the method in the derived class.
Here's an example of method overriding in C++:
```cpp
class BaseClass {
public:
virtual void someMethod() {
// Base class implementation
}
};
class DerivedClass : public BaseClass {
public:
void someMethod() override {
// New implementation in the derived class
}
};
```
In this example, `DerivedClass` overrides the `someMethod()` defined in `BaseClass` by providing its own implementation.