>>> import sys
>>> sys.path

def add(a, b):
    return a + b

#include <iostream>
#include <Python.h>

int main() 
{
    /*初始化python*/
    Py_Initialize();

    /*初始化python系統(tǒng)文件路徑，否則加載不到要調(diào)用的test_python.py文件*/
    PyRun_SimpleString("import sys");
    PyRun_SimpleString("sys.path.append('./')");

    /*加載要調(diào)用的python文件名稱，當(dāng)前測(cè)試文件名稱：test_python.py*/
    PyObject* pName = PyUnicode_DecodeFSDefault("test_python");

    PyObject* pModule = PyImport_Import(pName);

    Py_XDECREF(pName);

    if (pModule != NULL) 
    {
        /*加載python模塊中的函數(shù)*/
        PyObject* pFunc = PyObject_GetAttrString(pModule, "add");

        if (PyCallable_Check(pFunc)) 
        {
            /*給pythonm模塊中的函數(shù)add傳遞2個(gè)參數(shù)，以元組的形式傳遞*/
            PyObject* pArgs = PyTuple_New(2);

            /*給add函數(shù)傳遞第一個(gè)參數(shù)6*/
            PyTuple_SetItem(pArgs, 0, PyLong_FromLong(6));
            /*給add函數(shù)傳遞第二個(gè)參數(shù)10*/
            PyTuple_SetItem(pArgs, 1, PyLong_FromLong(10));
            /*C++的python接口調(diào)用add函數(shù)，返回計(jì)算結(jié)果*/
            PyObject* pValue = PyObject_CallObject(pFunc, pArgs);

            Py_XDECREF(pArgs);

            if (pValue != NULL) 
            {
                /*打印計(jì)算結(jié)果*/
                std::cout << "\n " << std::endl;
                std::cout << "Result of call: " << PyLong_AsLong(pValue) << std::endl;
                std::cout << "\n " << std::endl;

                Py_XDECREF(pValue);

            }
            else 
            {
                PyErr_Print();
            }
        }
        else 
        {
            if (PyErr_Occurred()) 
            {
                PyErr_Print();
            }

            fprintf(stderr, "Cannot find function \"add\"");
        }

        Py_XDECREF(pFunc);

        Py_XDECREF(pModule);
    }
    else 
    {
        PyErr_Print();

        fprintf(stderr, "Failed to load \"%s\"", "test");

        return 1;
    }

    /*結(jié)束python初始化*/
    Py_Finalize();

    return 0;
}