Python 嵌入C++/C等

以python2.6為例;

1. 用python的原始碼, 開啟編譯出python26.dll, python26.lib, python26_d.lib和python26_d.dll . 加入lib目錄中, 和放到system32檔案夾內.

2. 就可以進行下面的代碼了.

附加的一點: 擷取當前程式的運行目錄: 

    TCHAR Buffer[BUFSIZ];

    DWORD dwRet = GetCurrentDirectory(BUFSIZ,Buffer);

     WideCharToMultiByte( CP_ACP, WC_COMPOSITECHECK, (Buffer), -1, ch, sizeof(ch), NULL, NULL );

//這個和下面的三句是一樣的效果

//啊``` 神那, tchar, cstring char* 還是搞得雲裡霧裡的, 得再看下...

CString strPath; 

GetCurrentDirectory(MAX_PATH,strPath.GetBuffer(MAX_PATH)); 

WideCharToMultiByte( CP_ACP, WC_COMPOSITECHECK, (strPath.GetBuffer(strPath.GetLength() + 1)), 

              -1, ch, sizeof(ch), NULL, NULL ); //將wchar_t*轉換成char *.... 可以參考上篇日誌關於UNICODE和ASCI

strPath.ReleaseBuffer(); 

int len = strlen(ch);

string fileName = "\\test.py";

for( int i = 0; i < fileName.length(); i++) 

   ch[len++] = fileName[i]; 

ch[len] = '\0'; 

定位到你要找的那個.py的檔案路徑. 

主要下面的pyobject的初始的路徑和VS的預設處理路徑debug檔案夾不一樣. 所以這麼做.. 

也是自尋煩惱吧..

3. python的兩種嵌入方法, 一種是直接調用已經有的py檔案. 

PyObject *pyfile = PyFile_FromString(ch,"r"); 

if(pyfile==NULL) 

        { printf("exit 1"); system("pause"); return 1; } 

FILE *f = PyFile_AsFile(pyfile); 

if(f==NULL) 

        { printf("exit 2"); system("pause"); return 1; } 

PyRun_AnyFileEx(f,"test.py",0); 

 另外一種是直接插入語句執行

string pythonCode = "print('Hello world,I am python!')"; 

PyRun_SimpleString( pythonCode );

代碼:

// pythonPluginTest.cpp : 

// 

#pragma once#include "targetver.h"#include <stdio.h>#include <tchar.h>#define _AFXDLL 

#include "stdafx.h"#include <stdio.h>#include <string>#include <iostream>#include <fstream>#include <Python.h>#include <cstring>#include <afx.h>using namespace std; int _tmain(int argc, _TCHAR* argv[]){    Py_Initialize();//啟動python解譯器    ////////////////////////         CString strPath;         GetCurrentDirectory(MAX_PATH,strPath.GetBuffer(MAX_PATH));         char ch[BUFSIZ];        WideCharToMultiByte( CP_ACP, WC_COMPOSITECHECK, (strPath.GetBuffer(strPath.GetLength() + 1)), -1, ch, sizeof(ch), NULL, NULL ); ;    strPath.ReleaseBuffer();     string tmpStr;    cout << ch << endl;     int len = strlen(ch);     string fileName = "\\test.py";     for( int i = 0; i < fileName.length(); i++)        ch[len++] = fileName[i];     ch[len] = '\0';     cout << ch << endl;    // 直接調用已有的python的py程式

    PyObject *pyfile = PyFile_FromString(ch,"r");    if(pyfile==NULL)    {        printf("exit 1");        system("pause");        return 1;    }     FILE *f = PyFile_AsFile(pyfile);     if(f==NULL)    {        printf("exit 2");        system("pause");        return 1;     }    PyRun_AnyFileEx(f,"test.py",0);     //直接運行指令，指令都是字串，注意3.1.1版的python必須加上小括弧

    PyRun_SimpleString("print('Hello world,I am python!')");     ///////////////////////     Py_Finalize();   //關閉python解譯器

    system("pause");     return 0; }