这些抽象层让开发人员可选择是使用基于特性标记的声明语法，还是使用基于嵌套控件的命令模型来开发。
These abstraction layers give developers the option to use a declarative syntax based on attributes or an imperative model based on nested controls.
每种技术都有不同的优点，从而基于您的需要为开发人员提供了丰富的控件集合。
Each technology has different advantages, giving developers a rich set of controls based on your needs.
讨论了基于层次消息总线模式的智能控件化虚拟仪器开发系统的软件体系结构，分析了该模式所存在的问题。
The software architecture of the developing platform of Virtual Instruments based on Hierarchical Message Bus was discussed, and the problem of this mode was analyzed.
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