不支持将脚本 gui_mainfcn 作为函数执行: D:\MATLAB2021\toolbox\matlab\guide\gui_mainfcn.m 出错 GUI (第 15 行) gui_mainfcn(gui_State, varargin{:});

这个错误通常是因为您在调用 GUI 的时候没有使用正确的语法或参数。请确认您的代码是否正确调用了 GUI 的主函数，并且传递了正确的参数。如果您使用的是 MATLAB GUIDE 工具创建的 GUI，则可以尝试直接运行生成的 .fig 文件，而不是运行自动生成的代码。如果这些方法都无法解决问题，请提供更多代码和错误信息的详细信息，以便我更好地帮助您。

相关问题

不支持将脚本 gui_mainfcn 作为函数执行: D:\MATLAB2021\toolbox\matlab\guide\gui_mainfcn.m

这个错误通常出现在在 MATLAB 中使用 GUI（图形用户界面）时，是因为尝试将 GUI 的主函数 gui_mainfcn 作为一个普通的函数执行。这是不允许的，因为 gui_mainfcn 是一个 MATLAB 内置的函数，它只能在 GUI 中被调用。

如果你遇到这个错误，通常是因为你没有正确地设置 GUI 的启动选项。要解决这个问题，你需要按照以下步骤进行操作：

1. 确保你在 MATLAB 的当前工作目录中打开了 GUI 的 m 文件。

2. 在 MATLAB 命令窗口中输入以下命令：guide [your_gui_file_name]

3. 确保在 "Select GUI Startup Function" 对话框中选择 "Create GUI with GUIDE" 选项。

4. 点击 "OK" 按钮，然后在 MATLAB 编辑器中打开你的 GUI。

5. 在 MATLAB 命令窗口中输入以下命令来启动 GUI：[your_gui_file_name]

如果你仍然遇到问题，请检查你的 GUI 的代码是否正确，并在 MATLAB 的文档中查找更多关于 GUI 的信息。

gui_mainfcn.m 具体·代码

`gui_mainfcn.m` 是一个 MATLAB GUI 应用程序的主函数文件，其中包含 MATLAB 自动生成的代码和用户自定义的代码。以下是一个简单的示例：

function varargout = mygui(varargin)
% MYGUI MATLAB code for mygui.fig
%      MYGUI, by itself, creates a new MYGUI or raises the existing
%      singleton*.
%
%      H = MYGUI returns the handle to a new MYGUI or the handle to
%      the existing singleton*.
%
%      MYGUI('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in MYGUI.M with the given input arguments.
%
%      MYGUI('Property','Value',...) creates a new MYGUI or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before mygui_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to mygui_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help mygui

% Last Modified by GUIDE v2.5 16-Aug-2021 10:24:34

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @mygui_OpeningFcn, ...
                   'gui_OutputFcn',  @mygui_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT


% --- Executes just before mygui is made visible.
function mygui_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to mygui (see VARARGIN)

% Choose default command line output for mygui
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes mygui wait for user response (see UIRESUME)
% uiwait(handles.figure1);

% --- Outputs from this function are returned to the command line.
function varargout = mygui_OutputFcn(hObject, eventdata, handles)
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;

% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% User-defined code

% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% User-defined code

% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% User-defined code

% --- Executes during object creation, after setting all properties.
function axes1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to axes1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% User-defined code

这段代码包含了 GUI 的初始化、回调函数和用户自定义代码。其中，`mygui_OpeningFcn` 是 GUI 初始化函数，`pushbutton1_Callback`、`pushbutton2_Callback` 和 `pushbutton3_Callback` 是三个按钮的回调函数，`axes1_CreateFcn` 是用于创建一个图形对象的函数。