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//============================================================================// Name        : MyTest.cpp// Author      : Arts// Version     :// Copyright   : Your copyright notice// Description : Hello World in C++, Ansi-style//============================================================================#include 
   
    #include "Python.h"#include "stdlib.h"using namespace std;void very_high_layer() {
   	wchar_t *program = Py_DecodeLocale("MyProgram", NULL);	if (program == NULL) {
   		fprintf(stderr, "Fatal error: cannot decode MyProgram\n");		exit(1);	}	Py_SetProgramName(program); /* optional but recommended */	Py_Initialize();	PyRun_SimpleString("from time import time,ctime\n"			"print('Today is', ctime(time()))\n");	if (Py_FinalizeEx() < 0) {
   		exit(120);	}	PyMem_RawFree(program);	return;}int run_func() {
   	PyObject *pName, *pModule, *pFunc;	PyObject *pArgs, *pValue;	int i;	Py_Initialize();	PyRun_SimpleString("import sys");	PyRun_SimpleString("sys.path.append(\"/root/PycharmProjects/untitled\")");	pName = PyUnicode_DecodeFSDefault("hello");	/* Error checking of pName left out */	pModule = PyImport_Import(pName);	Py_DECREF(pName);	if (pModule != NULL) {
   		pFunc = PyObject_GetAttrString(pModule, "my_add");		/* pFunc is a new reference */		if (pFunc && PyCallable_Check(pFunc)) {
   			pArgs = PyTuple_New(2);			const char* argv[] = {
    "4", "5" };			for (i = 0; i < 2; ++i) {
   				pValue = PyLong_FromLong(atoi(argv[i]));				if (!pValue) {
   					Py_DECREF(pArgs);					Py_DECREF(pModule);					fprintf(stderr, "Cannot convert argument\n");					return 1;				}				/* pValue reference stolen here: */				PyTuple_SetItem(pArgs, i, pValue);			}			pValue = PyObject_CallObject(pFunc, pArgs);			Py_DECREF(pArgs);			if (pValue != NULL) {
   				printf("Result of call: %ld\n", PyLong_AsLong(pValue));				Py_DECREF(pValue);			} else {
   				Py_DECREF(pFunc);				Py_DECREF(pModule);				PyErr_Print();				fprintf(stderr, "Call failed\n");				return 1;			}		} else {
   			if (PyErr_Occurred())				PyErr_Print();			fprintf(stderr, "Cannot find function \"%s\"\n", "my_add");		}		Py_XDECREF(pFunc);		Py_DECREF(pModule);	} else {
   		PyErr_Print();		fprintf(stderr, "Failed to load \"%s\"\n", "hello");		return 1;	}	if (Py_FinalizeEx() < 0) {
   		return 120;	}	return 0;}int Run_Utilities(int num, ...) {
   	PyObject *pValue, *presult, *pmodule, *pret;	Py_Initialize();	PyRun_SimpleString("import threading");	wchar_t* pstr;	const char* mystring = "奔跑吧兄弟!";	size_t mystrlen = sizeof(mystring);	size_t* pmystrlen = &mystrlen;	// 1 byte char --> 4 bytes wchar_t	pstr = Py_DecodeLocale(mystring, pmystrlen);	printf("Py_DecodeLocale: %ls\n", pstr);	char* myencodestr;	size_t errpos = sizeof(int);	size_t* perrpos = &errpos;	// 4 bytes wchar_t --> 1 byte char	myencodestr = Py_EncodeLocale(pstr, perrpos);	printf("Py_EncodeLocale: %s\n", myencodestr);	// get objects in sys. in this example, get sys.path	pValue = PySys_GetObject("path");	cout << "PySys_GetObject: ";	PyObject_Print(pValue, stdout, 0);	cout << endl;	// Import Module	PyRun_SimpleString("import sys");	PyRun_SimpleString("sys.path.append(\"/root/PycharmProjects/untitled\")");	pmodule = PyImport_ImportModule("hello");	cout << "PyImport_ImportModule: ";	PyObject_Print(pmodule, stdout, 0);	cout << endl;	Py_DECREF(pmodule);	// get dict in sys.modules	presult = PyImport_GetModuleDict();	cout << "PyImport_GetModuleDict: ";	PyObject_Print(presult, stdout, 0);	cout << endl;	// build value	pValue = Py_BuildValue("i", 123);	cout << "Py_BuildValue: ";	PyObject_Print(pValue, stdout, 0);	cout << endl;	// parse value	int ivalue;	PyArg_Parse(pValue, "i", &ivalue);	cout << "PyArg_Parse: " << ivalue << endl;	Py_XDECREF(pValue);	// build serveral values	va_list va;	va_start(va, num);	pValue = Py_VaBuildValue("(i, i, i)", va);	cout << "Py_VaBuildValue: ";	PyObject_Print(pValue, stdout, 0);	cout << endl;	// parse tuple	int i = 0, j = 0, k = 0;	PyArg_ParseTuple(pValue, "iii", &i, &j, &k);	cout << "i:" << i << endl << "j:" << j << endl << "k:" << k << endl;	va_end(va);	Py_XDECREF(pValue);	// 获取当前所在函数的内建量	presult = PyEval_GetBuiltins();	cout << "PyEval_GetBuiltins: ";	PyObject_Print(presult, stdout, 0);	cout << endl;	// codec: encode and decode	pValue = Py_BuildValue("s", "Hello World!");	presult = PyCodec_Encode(pValue, "utf-16-le", "strict");	PyObject_Print(presult, stdout, 0);	cout << endl;	pret = PyCodec_Decode(presult, "utf-16-le", "strict");	PyObject_Print(pret, stdout, 0);	cout << endl;	if (Py_FinalizeEx() < 0) {
   		return 120;	}	return 0;}int main(int argc, char *argv[]) {
   	int ret = 0;#if 0 // 直接在C编译器中运行python语句	very_high_layer();#elif 0 // 执行.py脚本中的函数	ret = run_func();#elif 1 // 测试常用函数	ret = Run_Utilities(3, 111, 222, 333);#endif	return ret;}