Due to changes in demand, and in more cases inheritance hierarchy, sometimes we only need to change some of the ways the behavior of a parent method ACT1 (ACT1 method has been inherited by some subclasses) * But we do not want to influence the behavior of the original sub-class, how to solve this problem?
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A declarative, efficient, and flexible JavaScript library for building user interfaces.
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Typescript
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Django
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D3
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China tencent open source team.
