Increasingly, objects are "dynamic" in the sense that their structure and behavior is not captured by a static type, or at least not one that the compiler knows about when compiling your program.

对象的意义变得越来越“动态”，它们的结构和行为无法通过静态类型来捕获，或者至少编译器在编译程序时无法得知对象的结构和行为。

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From the teaching material"the program structure"on, adopts the dynamic mobile type structure modus, realizes the learning activity tendency, the main body and the life;

从教材“程序结构”上，采取动态的活动式结构样态，实现学习活动的动态化、主体化和生命化；

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