C language_ Structure introduction

Structure introduction

01—— Why use a structure

Ordinary integer , Floating point number , Strings are scattered data representations

Sometimes we need to use many types of data to represent a whole , For example, student information ：

Structs are analogous to arrays ： An array is a collection of data with the same element type

If it is a data set with different element data , The structure is about to be used .

02—— Define a structure

It is a template , Generally, no specific value is assigned , Not every item should be used in practical application .

Each member is a domain of the structure , Also known as domain tables （ Member list ）

While declaring , Defining variables , Use less as far as possible