等价的类型可替换程度取决于兼容性，是完全兼容，还是前向兼容，还是后向兼容。
The substitution of the equivalent types depends on the compatibility of types, whether they are fully compatible, forward compatible, or backward compatible.
等价的类型可替换程度取决于兼容性，是完全兼容，还是前向兼容，还是后向兼容。
The substitution of the equivalent types depends on the compatibility of types, whether they are fully compatible, forward compatible, or backward compatible.
应用推荐