Read the first installment of the Practical data binding column in which Brett examines several important concepts in data binding, including round-tripping and semantic equivalence.
阅读实用数据绑定专栏的第一篇文章，Brett分析了数据绑定中的几个重要概念，包括往返和语义等价。
2
Represents the binary dynamic operation at the call site, providing the bindingsemantic and the details about the operation.
表示调用站点上的动态设置成员操作，它提供绑定语义和有关操作的细节。
3
Represents the dynamic set member operation at the call site, providing the bindingsemantic and the details about the operation.