C語言調用PYTHON腳本-2 python代碼二段: call.py def test(): print 'hello world' def add(a,b): return a + b api.py import io def load_test(): fp = open('call.py','r') buffer = '' if fp: buffer = fp.read() fp.close() return buffer cpp代碼: #include <stdio.h> #include <stdlib.h> #include <Python.h> int main(int argc, char *argv[]) { Py_Initialize(); if(!Py_IsInitialized()) { return -1; } PyRun_SimpleString("import sys"); PyRun_SimpleString("sys.path.append('./')"); PyObject* pName; PyObject* pModule; PyObject* pDict; PyObject* pFunc; pName = PyString_FromString("api"); pModule = PyImport_Import(pName); if(!pModule) { printf("can't find call.py"); getchar(); return -1; } pDict = PyModule_GetDict(pModule); if(!pDict) { return -1; } { pFunc = PyDict_GetItemString(pDict,"load_test"); if(!pFunc || !PyCallable_Check(pFunc)) { printf("can't find function [test]"); getchar(); return -1; } PyObject *pFn = PyObject_CallObject(pFunc,0); char* buffer = PyString_AsString(pFn); printf("%s\n",buffer); PyObject* o = Py_CompileString(buffer,"none",Py_file_input); PyObject* m = PyImport_ExecCodeModule("a.a",o); PyObject* d = PyModule_GetDict(m); pFunc = PyDict_GetItemString(d,"add"); if(!pFunc || !PyCallable_Check(pFunc)) { printf("can't find function [add]"); getchar(); return -1; } PyObject* args = PyTuple_New(2); PyTuple_SetItem(args,0,Py_BuildValue("l",3)); PyTuple_SetItem(args,1,Py_BuildValue("l",4)); PyObject *pAdded = PyObject_CallObject(pFunc,args); int ret = PyInt_AsLong(pAdded); printf("add value:%d\n",ret); } Py_Finalize(); system("PAUSE"); return 0; } 這段代碼和上一篇有點區別 主要區別是從從內存載入python模塊然後調用函數 主要部分是這塊: PyObject* o = Py_CompileString(buffer,"none",Py_file_input); PyObject* m = PyImport_ExecCodeModule("a.a",o); PyObject* d = PyModule_GetDict(m); buffer是python源碼字符串
