Python 调用 C++详解编程语言

#include <boost/python.hpp> 
#include <boost/python/module.hpp> 
  
#include <boost/python/def.hpp> 
#include <boost/python/to_python_converter.hpp> 
#include 
using namespace std; 
using namespace boost::python; 
  
namespace HelloPython{ 
// 简单函数 
char const* sayHello(){ 
    return "Hello from boost::python"; 
} 
  
  
// 简单类 
class HelloClass{ 
public: 
    HelloClass(const string& name):name(name){ 
    } 
public: 
    string sayHello(){ 
      return "Hello from HelloClass by : " + name; 
    } 
private: 
    string name; 
}; 
// 接受该类的简单函数 
string sayHelloClass(HelloClass& hello){ 
    return hello.sayHello() + " in function sayHelloClass"; 
} 
  
  
//STL容器 
typedef vector<int> ivector; 
  
  
//有默认参数值的函数 
void showPerson(string name,int age=30,string nationality="China"){ 
    cout << name << " " << age << " " << nationality << endl; 
} 
  
// 封装带有默认参数值的函数 
BOOST_PYTHON_FUNCTION_OVERLOADS(showPerson_overloads,showPerson,1,3) //1:最少参数个数,3最大参数个数 
  
// 封装模块 
BOOST_PYTHON_MODULE(HelloPython){ 
    // 封装简单函数 
    def("sayHello",sayHello); 
  
    // 封装简单类，并定义__init__函数 
    class_("HelloClass",init()) 
      .def("sayHello",&HelloClass::sayHello)//Add a regular member function 
      ; 
    def("sayHelloClass",sayHelloClass); // sayHelloClass can be made a member of module!!! 
  
    // STL的简单封装方法 
    class_("ivector") 
      .def(vector_indexing_suite()); 
    class_ >("ivector_vector") 
      .def(vector_indexing_suite >()); 
  
    // 带有默认参数值的封装方法 
    def("showPerson",showPerson,showPerson_overloads()); 
}