Shaping can be understood as an integer.

A character type can be understood as a single character, such as characters' a',' b',' 1' and so on.

Floating-point type can be understood as decimal

2. Type data type:

Structure can be understood as putting different data types together to form a new meaningful one: when it comes to people, you will think that people have attributes such as height, sex and age, and people are data types constructed by putting them together.

Structural personnel {

Double Goldman Sachs;

char[]xing bie；

Int nianling;

};

3. Class (class)

On the basis of struct, data operation, the setting of data access rights, and some rules and settings between data operation methods, such as inheritance, are added.

4. Data structure and algorithm

This requires special books to study, including linked lists, trees, graphs and so on.