结构体在matlab中的应用.pdf

(struct) MALTABstructMATLABstruct C 4. 3.1 MATLABstruct 1. structx x.real = 0; % real0 x.imag = 0 % ximag0 x = real: 0 imag: 0 x(2).real = 0; % x1×2 x(2).imag = 0; scale x(1).scale = 0; xscalex(1)scale x(1) % ans = real: 0 imag: 0 scale: 0 x(2) % ans = real: 0 imag: 0 scale: [] x realimagscale clear x; x.real = [1 2 3 4 5]; x.imag = ones(10,10); x(2).real = 123; x(2).imag = rand(5,1); x(3).real = x(1); x(3).imag = 3; x(3) ans = real: [1x1 struct] imag: 3 4.3.1-1 1 green_house.name = ; % green_house.volume = 2000; % green_house.parameter.temperature = [31.2 30.4 31.6 28.7 % 29.7 31.1 30.9 29.6]; green_house.parameter.humidity = [62.1 59.5 57.7 61.5; % 62.0 61.9 59.2 57.5]; 2 green_house % green_house = name: volume: 2000 parameter: [1x1 struct] green_house.parameter % . parameter ans = temperature: [2x4 double] humidity: [2x4 double] green_house.parameter.temperature % temperature ans = 31.2000 30.4000 31.6000 28.7000 29.7000 31.1000 30.9000 29.6000 4.3.1-2 green_house(2,3).name = ; %2×3 green_house % green_house = 2x3 struct array with fields: name volume parameter green_house(2,3) % ans = name: volume: [] parameter: [] 2. struct struct struct s = sturct(field1,values1,field2,values2,…); values1 valuese2 structvalues1 values2 values field valuesx 1×1 s = struct(type,{big,little},color,{blue,red},x,{3,4}) s = 1x2 struct array with fields: type color x 1×2 stype colorx3struct{big,little}{blue,red}{3,4}1×2 s(1,1) ans = type: big color: blue x: 3 s(1,2) ans = type: little color: red x: 4 struct s = struct(type,{big;little},color,{blue;red},x,{3;4}) s = 2x1 struct array with fields: type color x 2×1 struct 4.3.1-3 struct 1 struct a = cell(2,3); % 2×3 green_house_1=struct(name,a,volume,a,parameter,a(1,2)) green_house_1 = 2x3 struct array with fields: name volume parameter 2 struct green_house_2=struct(