位置 2 的索引无效。数组索引必须为正整数或逻辑值。 出错 oooo (line 751) if ismember(i, gateway1) && sum(a1(i, gateway1) == 3) > n_gateway/2+1file = fopen('liangcengjiedian.txt', 'r'); % 去掉空格 if file ~= -1 % 确认文件已经被正确打开 data = textscan(file, '(%f,%f,%f) to (%f,%f,%f)\n'); n_gateway = length(data{1}); gateway1 = []; gateway2 = []; for i = 1:size(data{1}, 1) x1 = data{1}(i); y1 = data{2}(i); z1 = data{3}(i); x2 = data{4}(i); y2 = data{5}(i); z2 = data{6}(i); gateway1 = [gateway1; x1, y1, z1]; gateway2 = [gateway2; x2, y2, z2]; end fclose(file); % 记得关闭文件 else disp('Error: file not found or could not be opened.'); end % 使用randperm函数随机选择n_gateway个网关 n_gateway = min(n_gateway, size(gateway1, 1)); idx = randperm(size(gateway1, 1), n_gateway); gateway1 = gateway1(idx, :); gateway2 = gateway2(idx, :); state1 = zeros(n1, 1); % 第一层节点状态 state2 = zeros(n2, 1); % 第二层节点状态 修改为正确代码

这个错误信息说明了在代码中使用了一个无效的索引位置2。具体来说，可能是在a1(i, gateway1)这一行代码中，i取值为2，但是gateway1数组的长度小于2，导致出现了这个错误。你需要检查一下gateway1数组的长度是否正确，或者在使用这个数组之前先进行长度判断和处理。以下是修改后的代码：

file = fopen('liangcengjiedian.txt', 'r'); % 去掉空格
if file ~= -1 % 确认文件已经被正确打开
    data = textscan(file, '(%f,%f,%f) to (%f,%f,%f)\n');
    n_gateway = length(data{1});
    gateway1 = [];
    gateway2 = [];
    for i = 1:size(data{1}, 1)
        x1 = data{1}(i);
        y1 = data{2}(i);
        z1 = data{3}(i);
        x2 = data{4}(i);
        y2 = data{5}(i);
        z2 = data{6}(i);
        gateway1 = [gateway1; x1, y1, z1];
        gateway2 = [gateway2; x2, y2, z2];
    end
    fclose(file); % 记得关闭文件
else
    disp('Error: file not found or could not be opened.');
end

% 使用randperm函数随机选择n_gateway个网关
n_gateway = min(n_gateway, size(gateway1, 1));
if n_gateway > 0
    idx = randperm(size(gateway1, 1), n_gateway);
    gateway1 = gateway1(idx, :);
    gateway2 = gateway2(idx, :);
end

state1 = zeros(n1, 1); % 第一层节点状态
state2 = zeros(n2, 1); % 第二层节点状态

这里加了一个判断，如果n_gateway为0，则不进行随机选择网关的操作。