在python和C++之间传递变量(嵌入，而不是扩展)

#include <Python.h>

int main() {
    Py_Initialize();
    // ...
}

PyObject* pModule = PyImport_ImportModule("mymodule");
if (pModule) {
    PyObject* pFunc = PyObject_GetAttrString(pModule, "myfunc");
    if (pFunc && PyCallable_Check(pFunc)) {
        PyObject* pArgs = PyTuple_New(1);
        PyObject* pValue = PyLong_FromLong(42);
        PyTuple_SetItem(pArgs, 0, pValue);
        
        PyObject* pResult = PyObject_CallObject(pFunc, pArgs);
        
        if (pResult != NULL) {
            long result = PyLong_AsLong(pResult);
            // 处理返回的结果
            Py_DECREF(pResult);
        }
        
        Py_DECREF(pArgs);
    }
    Py_DECREF(pFunc);
    Py_DECREF(pModule);
}

PyObject* pModule = PyImport_ImportModule("mymodule");
if (pModule) {
    PyObject* pFunc = PyObject_GetAttrString(pModule, "myfunc");
    if (pFunc && PyCallable_Check(pFunc)) {
        PyObject* pArgs = PyTuple_New(1);
        PyObject* pValue = Py_BuildValue("s", "Hello, World!");
        PyTuple_SetItem(pArgs, 0, pValue);
        
        PyObject* pResult = PyObject_CallObject(pFunc, pArgs);
        
        if (pResult != NULL) {
            // 处理返回的结果
            Py_DECREF(pResult);
        }
        
        Py_DECREF(pArgs);
    }
    Py_DECREF(pFunc);
    Py_DECREF(pModule);
}