将所有 Simulink 手动开关状态导出为 JSON 的 Matlab 代码

此 MATLAB 函数遍历当前加载的 Simulink 模型（gcs）中的所有手动开关，并将其开关状态（0 或 1）导出为 JSON 字符串。

JSON 是直接生成的，而不是通过 struct() 和 jsonencode() 生成，因为 struct() 不支持字段名中的空格或斜杠。

switch_positions_to_json.m

function jsonStr = switch_positions_to_json()
    % Finds all Switches in the Simulink model
    switches = find_system(gcs, 'BlockType', 'ManualSwitch');

    % Initializes a JSON string with an opening curly brace
    jsonStr = '{';

    % Iterates through all switches
    for i = 1:length(switches)
        switchPath = switches{i};
        switchPos = get_param(switchPath, 'sw');

        % Adds key-value pair to the JSON string
        if i > 1
            jsonStr = [jsonStr, ','];
        end
        % Replace newlines in the switch path with escaped backslash + n
        escapedSwitchPath = strrep(switchPath, newline, '\\n');

        % Adds the key in quotes and the value
        jsonStr = [jsonStr, '"', escapedSwitchPath, '":', switchPos];
    end

    % Closes the JSON string with a closing curly brace
    jsonStr = [jsonStr, '}'];
end

function jsonStr = switch_positions_to_json()
    % Finds all Switches in the Simulink model
    switches = find_system(gcs, 'BlockType', 'ManualSwitch');

    % Initializes a JSON string with an opening curly brace
    jsonStr = '{';

    % Iterates through all switches
    for i = 1:length(switches)
        switchPath = switches{i};
        switchPos = get_param(switchPath, 'sw');

        % Adds key-value pair to the JSON string
        if i > 1
            jsonStr = [jsonStr, ','];
        end
        % Replace newlines in the switch path with escaped backslash + n
        escapedSwitchPath = strrep(switchPath, newline, '\\n');

        % Adds the key in quotes and the value
        jsonStr = [jsonStr, '"', escapedSwitchPath, '":', switchPos];
    end

    % Closes the JSON string with a closing curly brace
    jsonStr = [jsonStr, '}'];
end

示例输出

switch_positions_example.json

{"MySimulinkModel/Manual Switch":0,"MySimulinkModel/Subsystem/Null switch":1}

{"MySimulinkModel/Manual Switch":0,"MySimulinkModel/Subsystem/Null switch":1}

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