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| 逆抗，反变性 | |||
| 反抗变性 | |||
| 抗变 | |||
| 抗变性; 反变性; 反变 | |||
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| Contravariance (In programming languages, the ability to use a less derived type than that originally specified. Contravariance in generic interfaces and delegates allows for implicit conversion of generic type parameters. Contravariance is also supported for non-generic delegates for matching method signatures with delegate types) | |||
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