jit即使编译语言调用c++

import ctypes  
ll = ctypes.cdll.LoadLibrary   
lib = ll("./libpycall.so")    
lib.foo(1, 3) 

static PyObject *MyFunction( PyObject *self, PyObject *args );
static PyObject *MyFunctionWithKeywords(PyObject *self,  PyObject *args, PyObject *kw);
static PyObject *MyFunctionWithNoArgs( PyObject *self );

#include <Python.h>
static PyObject *SpamError;
static PyObject *
spam_add(PyObject * self,PyObject *args)
{
	long a;
	//将python中传入的变量转化成C中的变量
	if(!PyArg_ParseTuple(args,"l",&a))
		return NULL;
	long long tmp=0;
	for(long i = 1;i<=a;i++)
		tmp +=i;
	//将C中的变量转化成python中的变量
	return Py_BuildValue("L",tmp);
}
 
//方法定义
static PyMethodDef SpamMet