详解C++调用Python脚本中的函数的实例代码

#include "stdafx.h" #include <stdlib.h>#include <iostream> #include "include/Python.h"using namespace std;int _tmain(int argc, _TCHAR* argv[]){  //初始化Python环境   Py_Initialize();  PyRun_SimpleString("import sys");  //添加Insert模块路径   //PyRun_SimpleString(chdir_cmd.c_str());  PyRun_SimpleString("sys.path.append('./')");  //导入模块   PyObject* pModule = PyImport_ImportModule("mytest");  if (!pModule)  {    cout << "Python get module failed." << endl;    return 0;  }  cout << "Python get module succeed." << endl;  PyObject * pFunc = NULL;  pFunc = PyObject_GetAttrString(pModule, "Hello");  PyEval_CallObject(pFunc, NULL);  //获取Insert模块内_add函数   PyObject* pv = PyObject_GetAttrString(pModule, "_add");  if (!pv || !PyCallable_Check(pv))  {    cout << "Can't find funftion (_add)" << endl;    return 0;  }  cout << "Get function (_add) succeed." << endl;  //初始化要传入的参数，args配置成传入两个参数的模式   PyObject* args = PyTuple_New(2);  //将Long型数据转换成Python可接收的类型   PyObject* arg1 = PyLong_FromLong(4);  PyObject* arg2 = PyLong_FromLong(3);  //将arg1配置为arg带入的第一个参数   PyTuple_SetItem(args, 0, arg1);  //将arg1配置为arg带入的第二个参数   PyTuple_SetItem(args, 1, arg2);  //传入参数调用函数，并获取返回值   PyObject* pRet = PyObject_CallObject(pv, args);  if (pRet)  {    //将返回值转换成long型     long result = PyLong_AsLong(pRet);    cout << "result:" << result << endl ;  }  Py_Finalize();  system("pause");  return 0;}