C++调用Python-6:调用Python类
2022/4/2 20:20:41
本文主要是介绍C++调用Python-6:调用Python类,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
# mytest.py class Test: def hello(self): print("this is test class hello function no params return 123") return 123 def myadd(self, x, y): print("this is test class myadd function params x y return x+y") print(f'{x}--{y}') return x + y
#include "Python.h" #include <iostream> using namespace std; int main(int argc, char* argv[]) { Py_Initialize(); if (!Py_IsInitialized()) { cout << "初始化失败" << endl; } PyRun_SimpleString("import sys"); PyRun_SimpleString("sys.path.append('./')"); PyObject* pModel = nullptr; pModel = PyImport_ImportModule("mytest"); PyObject* pDict = PyModule_GetDict(pModel); // 获取 Test 类,及实例 PyObject* pTestClass = PyDict_GetItemString(pDict, "Test"); PyObject* pTest = PyObject_CallObject(pTestClass, nullptr); // 调用类方法 hello PyObject* hello = PyObject_CallMethod(pTest, "hello", "", ""); int helloRes = PyLong_AsLong(hello); Py_DecRef(hello); cout << "class hello is:" << helloRes << endl; // 调用类方法 myadd PyObject* myadd = PyObject_CallMethod(pTest, "myadd", "(ii)", 456, 123); int myaddRes = PyLong_AsLong(myadd); Py_DecRef(myadd); cout << "class myadd is:" << myaddRes << endl; Py_DecRef(pTest); Py_DecRef(pTestClass); Py_DecRef(pDict); Py_DecRef(pModel); Py_Finalize(); return 0; }
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