湖边的白杨树

摘要： QuestionKey wordsAnwserAassignment operator abstract class　It is a class that has one or more pure virtual functions.　assignment & initialization ... 阅读全文

摘要： Q: What is virtual function?A: Avirtual function or virtual method is a function or method whose behavior can be overridden within an inheriting class... 阅读全文

摘要： Q: What is a class?A: A class is an expanded concept of a data structure: instead of holding only data, it can hold both data and functions.Q: What ar... 阅读全文

摘要： Q: What is a dangling pointer?A: A dangling pointer arises when you use the address of an object after its lifetime is over. This may occur in situati... 阅读全文

摘要： Q: What is the difference betweennew/delete and malloc/free?A: Malloc/free do not know about constructors and destructors. New and deletecreate and de... 阅读全文

摘要： Constructors/Destructors.我们都知道，在C++中建立一个类，这个类中肯定会包括构造函数、析构函数、复制构造函数和重载赋值操作；即使在你没有明确定义的情况下，编译器也会给你生成这样的四个函数。例如以下类： class CTest{public: CTest(); ... 阅读全文

摘要： 参考：http://www.renfei.org/blog/mac-os-x-terminal-101.htmlOne command line includes 4 parts:Command Name、Options、Arguments、Extras .man : Give the manua... 阅读全文