C++ language extensions and references:
- C++ is an extension of the C language, and the use of its namespace can effectively avoid naming conflicts.
- The extension of C++ to C includes features such as multiple inheritance and templates.
- In C and C++, const is used differently, and const in C++ is more flexible.
- The use of reference type variables in C++ is very flexible, and more efficient programming can be achieved through function overloading and other methods.
Basic concepts of classes and objects:
- A class is a user-defined data type used to describe a class of objects with the same properties and methods.
- Class encapsulation and access control permissions can ensure data security and program stability.
- Classes and objects can be used to implement complex programming functions, such as constructors, destructors, polymorphism and other features.
Dynamic allocation and deallocation of classes and objects:
- Dynamically allocating and freeing memory can improve program flexibility and reliability.
- The use of static member variables and functions allows for greater control over the state and behavior of classes and objects.
- The C++ compiler's processing mechanism for member variables and member methods can help programmers better understand and use classes and objects.
Operator overloading and templates:
- Operator overloading can make the program more flexible, such as custom smart pointer classes and String classes.
- Inheritance, derivation, and polymorphism are important features of object-oriented programming.
- Function templates and class templates can help programmers more conveniently implement common data types and algorithms.
Exception, I/O stream:
- The C++ standard exception library and exception throwing and catching can help programmers handle errors better.
- C++ standard I/O streams (cin, cout) can be easily input and output.
- The C++ file I/O class can implement file read and write operations, which is very suitable for file processing scenarios.
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