MATLAB入门(十二) - 一只胖橘

结构体

基本数据

name-------------- 张三
weight------------ 66kg
length------------ 200km
width------------- 30km

一个数组内的数据类型都相同
结构体

person.weight=88
person.length=288
person.width=208

使用赋值语句创建结构体
输入:

preson.name='张三';
person.weight=80;
person.length=200;
person.width=40;
person

输出:

preson = 
    weight: 80
    length: 200
    width: 40
    name: '张三'

输入:

person(1).name='张三';
person(1).weight=80;
person(1).length=200;
person(1).width=40;
person(2).name='李四';
person(2).weight=70;
person(2).length=100;
person(2).width=40;
person
person(1)
person(2)

输出:

person = 

1x2 struct array with fields:

    weight
    length
    width
    name


ans = 

    weight: 80
    length: 200
     width: 40
      name: '张三'


ans = 

    weight: 70
    length: 100
     width: 40
      name: '李四'

struct函数

语法:
- struct(域名1,属性值,域名2,属性值,…)

输入:

person=struct('name','张三','weight',100,'height',180);
person

输出:

person = 

    name: '张三'
    weight: 100
    height: 180

输入:

person=struct('name',{'张三','李四'},'weight',{100,80},'height',{180,170});
person
person(1)
person(2)

输出:

person = 

1x2 struct array with fields:

    name
    weight
    height


ans = 

    name: '张三'
    weight: 100
    height: 180


ans = 

    name: '李四'
    weight: 80
    height: 170

访问结构体内部元素

语法格式:
- 结构体名称
- 结构体名称.字段名
- 结构体名称.字段名=新值