C++

The functions can divide the code of different purpose in a program, and use the defined code repeatedly by calling the function if we need.

Pointer is a special data type in C++ that stores variable memory address. It is often used to build structure such as Linked List or to transfer large data memory address to improve program efficiency.

Data is text format can be said to be one of the most basic data forms of computer system. For example, Linux operating system has many settings that are stored in text file for the convenience of users to adjust freely.

In the programming language, if-else allows us to make different responses according to different situations, loop allows the computer to do a large number of tasks of similar nature to automate operations, and flow control allows us in the loop, you can fast forward to next iteration, or even leave the loop early.

No matter which programming language, we all need to be familiar with Data Input and Output. In C++, we can use the <iostream> header file to master the basic I/O operation.

iostream, which is the abbreviation of Input/Output Stream.

In programming, there are so-called arithmetic operators, such as addition (+), subtraction (-), multiplication (*) and division (/). In addition, the commonly used operator include the % symbol for calculating the remainder.

C++ is the first programming language that many people have learned, and it is also the first impression of programming of many people with information background.