内容简介作者简介 - 科学与工程计算系

3.3.3.2 增添域和删除域
【例 3.3.3.2-1】对构架数组 green_house 进行域的增添和删减操作。
(1)
clear,for k=1:10;department(k).number=['No.',int2str(k)];end
department
department =
1x10 struct array with fields:
number
(2)
department(1).teacher=40;department(1).student=300;
department(1).PC_computer=40;
department
department =
1x10 struct array with fields:
number
teacher
student
PC_computer
(3)
department(2).teacher.male=35;department(2).teacher.female=13;
D2T=department(2).teacher %第 2 构架 teacher 域包含两个子域
D1T=department(1).teacher %第 1 构架 teacher 域仅是一个数
D2T =
male: 35
female: 13
D1T =
40
(4)
department(2).teacher=rmfield(department(2).teacher,'male');
department(2).teacher
ans =
female: 13
(5)
department=rmfield(department,'student')
department =
1x10 struct array with fields:
number
teacher
PC_computer
department=rmfield(department,{'teacher';'PC_computer'})
department =
1x10 struct array with fields:
number
3.3.3.3 数值运算操作和函数对构架数组的应用
【例 3.3.3.3-1】数值运算操作和函数在构架域上的作用。
n_ex=5;
for k=1:n_ex, ex(k).f=(k-1)*n_ex+[1:5];end
ex
ex =
13