代碼如下，分別演示直接執(zhí)行python語(yǔ)句、無(wú)返回?zé)o參數(shù)函數(shù)調(diào)用、返回單參數(shù)函數(shù)調(diào)用。返回多參數(shù)函數(shù)調(diào)用：

#include <Python.h>
#include <iostream>
using namespace std;

//執(zhí)行python命令
void ExecPythonCommand()
{
 //直接執(zhí)行
 PyRun_SimpleString("from time import time,ctime\n"
  "print 'Today is',ctime(time())\n");
}

//調(diào)用無(wú)參數(shù)函數(shù)
void InvokeNoParm()
{
 PyObject* pMod = NULL;
 PyObject* pFunc = NULL;
 //導(dǎo)入模塊
 pMod = PyImport_ImportModule("Life");
 if(pMod)
 {
  //獲取函數(shù)地址
  pFunc = PyObject_GetAttrString(pMod, "a");
  if(pFunc)
  {
   //函數(shù)調(diào)用
   PyEval_CallObject(pFunc, NULL);
  }
  else
  {
   cout << "cannot find function a" << endl;
  }
 }
 else
 {
  cout << "cannot find Life.py" << endl;
 }
}

//調(diào)用一參數(shù)函數(shù)
void InvokeWith1Parm()
{
 PyObject* pMod = NULL;
 PyObject* pFunc = NULL;
 PyObject* pParm = NULL;
 PyObject* pRetVal = NULL;
 int   iRetVal = 0;
 //導(dǎo)入模塊
 pMod = PyImport_ImportModule("FuncDef");
 if(pMod)
 {
  pFunc = PyObject_GetAttrString(pMod, "square");
  if(pFunc)
  {
   //創(chuàng)建參數(shù)
   pParm = Py_BuildValue("(i)", 5);
   //函數(shù)調(diào)用
   pRetVal = PyEval_CallObject(pFunc, pParm);
   //解析返回值
   PyArg_Parse(pRetVal, "i", &iRetVal);
   cout << "square 5 is: " << iRetVal << endl;
  }
  else
  {
   cout << "cannot find function square" << endl;
  }
 }
 else
 {
  cout << "cannot find FuncDef.py" << endl;
 }
}

//調(diào)用多參數(shù)函數(shù)
void InvokeWith2Parm()
{
 PyObject* pMod = NULL;
 PyObject* pFunc = NULL;
 PyObject* pParm = NULL;
 PyObject* pRetVal = NULL;
 int   iRetVal = 0;
 //導(dǎo)入模塊
 pMod = PyImport_ImportModule("add");
 if(pMod)
 {
  pFunc = PyObject_GetAttrString(pMod, "add");
  if(pFunc)
  {
   //創(chuàng)建兩個(gè)參數(shù)
   pParm = PyTuple_New(2);
   //為參數(shù)賦值
   PyTuple_SetItem(pParm, 0, Py_BuildValue("i",2000));
   PyTuple_SetItem(pParm, 1, Py_BuildValue("i",3000));
   //函數(shù)調(diào)用
   pRetVal = PyEval_CallObject(pFunc, pParm);
   //解析返回值
   PyArg_Parse(pRetVal, "i", &iRetVal);
   cout << "2000 + 3000 = " << iRetVal << endl;
  }
  else
  {
   cout << "cannot find function square" << endl;
  }
 }
 else
 {
  cout << "cannot find add.py" << endl;
 }
}

int main(int argc, char* argv[])
{
 Py_Initialize(); //python 解釋器的初始化
 
 ExecPythonCommand();
 InvokeNoParm();
 InvokeWith1Parm();
 InvokeWith2Parm();

 Py_Finalize();  // 垃圾回收、清除導(dǎo)入庫(kù)
 return 0;
}


習(xí)慣C＋＋的內(nèi)存分配釋放，突然間不用釋放，感覺(jué)很蹊蹺，上網(wǎng)查發(fā)現(xiàn)也沒(méi)有釋放函數(shù)。如果真這樣的話，是很可怕的，因?yàn)闊o(wú)法自己管理內(nèi)存，但是我相信編譯器作者的垃圾回收機(jī)制，所以O(shè)K，不管！！

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