matlab执行py文件中的一个def
时间: 2024-10-22 09:09:49 浏览: 27
在MATLAB中调用Python脚本里的函数(`def`函数),你需要使用`system`函数或者`pythontoolbox`包,特别是当你的Python脚本已经包含了一个定义好的函数。以下是一个简单的步骤示例:
1. 首先,在Python脚本(`my_script.py`)中定义一个函数:
```python
# my_script.py
def add_numbers(a, b):
return a + b
```
2. 然后在MATLAB中,使用`system`函数运行Python脚本并执行该函数:
```matlab
% MATLAB代码
result = system(['python my_script.py -a 5 -b 7']); % 假设你的函数需要命令行参数
output = str2double(regexprep(result, '\n', '')); % 提取结果,假设返回的是数字
disp(output) % 输出结果
```
或者使用`pythontoolbox`包(需安装它):
```matlab
% 使用pythontoolbox
add_numbers_py = py.importlib.import_module('my_script'); % 导入模块
result = add_numbers_py.add_numbers(5, 7); % 调用函数
disp(result);
```
请注意,`system`方法可能不适用于复杂的交互式操作,而`pythontoolbox`则提供了一种更为方便的方式来导入和调用Python函数。
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