计算机专业毕业英文论文一万字,计算机专业毕业设计论文外文文献中英文翻译(Object)...
本文探讨了面向对象编程(OOP)中对象生命周期管理的相关内容。外文文献指出,对象的创建和销毁过程涉及存储管理和生命周期控制。C++采用静态内存分配方式,在编译时确定存储位置、时间和类型,虽然速度快但缺乏灵活性;而堆内存则通过动态管理实现对象的创建和销毁,在运行时决定存储时间和类型,提供了更高的灵活性但牺牲了一定的速度优势。文章进一步分析了这两种方法在不同应用场景下的适用性,并强调了根据具体需求选择合适方法的重要性。
Computer Science Specialization (40020) at Online Education Platform: Graduation Thesis Translation of External Academic Literature between English and Chinese, Targeting [Object]
外文资料
Object landscapes and lifetimes
Technically, Object-Oriented Programming centers around the abstraction of data types, inheritance mechanisms, and polymorphic behavior. While other concerns are equally significant, moving forward in this section we will address these matters.
In object-oriented programming, one of the most critical aspects lies in how objects are created and destroyed. A fundamental question arises: where is an object's data stored, and how is its lifetime managed? Different design philosophies are at play here. C++ adopts a method prioritizing efficiency control, thereby giving developers significant flexibility in managing resources. For optimal runtime performance, programmers can determine a variable's storage and lifetime during compilation by placing it on the stack (referred to as automatic or scoped variables) or within static storage areas. This approach emphasizes speed in memory allocation and deallocation, which can be advantageous in specific scenarios. However, this strategy sacrifices flexibility since it requires precise knowledge of variable quantity, duration, and type during program development. When addressing broader issues such as computer-aided design, warehouse management systems, or air traffic control systems, this constraint becomes too limiting.
The second approach involves generating objects dynamically within a memory pool referred to as the heap. In this method, the exact number of objects needed, their lifetimes, and specific types are unknown until runtime. These attributes are determined on-the-fly as the program executes. When a new object is required, it is created directly on the heap at the point of need. Since memory allocation is managed dynamically during runtime, the time required to allocate storage on the heap is significantly longer than that for stack allocation (which typically involves two simple assembly instructions to adjust the stack pointer). The dynamic nature of this approach aligns with the general assumption that objects tend to be complex, meaning the additional overhead associated with finding and releasing storage will have a relatively minor impact on object creation. Furthermore, this method offers enhanced flexibility, which is crucial for addressing the general
