Python与C/C++相互调用

野性酷女 2023-01-23 14:52 31阅读 0赞

参考文章: [Python实例浅谈之三Python与C/C++相互调用][Python_Python_C_C]

[使用c语言调用python小结][c_python]

[c调用python脚本如何获取结果\_C与python的调用二（简单参数传递、返回值获得）][c_python_C_python]

## main.c ##

// gcc c_python.c -lpython2.7 -o test
    #include <python2.7/Python.h>
    //#include <Python.h>
    
    void getcurrent()
    {
        PyRun_SimpleString("import sys");
        PyRun_SimpleString("sys.path.append('./')");
        return;
    }
    
    void run()
    {
        Py_Initialize();//初始化python
        getcurrent();
     
        PyObject *pModule = NULL, *pFunc = NULL, *pArg = NULL, *result = NULL;;
        pModule = PyImport_ImportModule("pytest");//引入模块
        pFunc = PyObject_GetAttrString(pModule, "test");//直接获取模块中的函数
        pArg = Py_BuildValue("(s)", "hello_python333"); //参数类型转换，传递一个字符串。将c/c++类型的字符串转换为python类型，元组中的python类型查看python文档
       
        result = PyEval_CallObject(pFunc, pArg); //调用直接获得的函数，并传递参数
        
        //char *str;
        //PyArg_Parse(result, "i", str); //将python类型的返回值转换为c/c++类型
        char *str = PyString_AsString(result); //将python类型的返回值转换为c/c++类型
        printf("str: ====================> %s\n", str);
    
        Py_Finalize(); //释放python
        return;
    }
    
    int main(int argc, char* argv[])
    {
        run();
        return 0;
    }

## pytest.py ##

#!/usr/bin/python
    # -*- coding: UTF-8 -*-
    
    def test(str):
       # "打印任何传入的字符串"
       print str
       return str
    
    test("hahahah")

[Python_Python_C_C]: https://www.cnblogs.com/apexchu/p/5015961.html
[c_python]: https://blog.csdn.net/feitianxuxue/article/details/41129677?utm_medium=distribute.pc_relevant_download.none-task-blog-2~default~BlogCommendFromBaidu~default-1.test_version_3&depth_1-utm_source=distribute.pc_relevant_download.none-task-blog-2~default~BlogCommendFromBaidu~default-1.test_version_
[c_python_C_python]: https://blog.csdn.net/weixin_39797758/article/details/109951586