city_coordinates = [1 2; 3 4; 5 6; 7 8; 9 10]; % 计算城市之间的距离 distances = zeros(size(city_coordinates,1)); for i = 1:size(city_coordinates,1) for j = 1:size(city_coordinates,1) distances(i,j) = sqrt((city_coordinates(i,1)-city_coordinates(j,1))^2 + (city_coor...