我又回到了一个项目中的编程,而且我已经有好几个小时没有从python脚本中得到任何回报。 有趣的是,几个月前我成功地让这个工作,现在我不知道出了什么问题
< C++代码在哪里:int CPythonPlugIn::py_embed(int argc, char *argv[]){
ofstream textfile3;
textfile3.open("FP_python_embed.txt");
PyObject *pName, *pModule, *pDict, *pFunc, *pArgs, *pValue;
if(argc<3){
printf("Usage: exe_name python_source function_name\n");
return 1;
}
//To inform the interpreter about paths to Python run-time libraries
Py_SetProgramName(argv[0]);
// Initialize the Python Interpreter
Py_Initialize();
if( !Py_IsInitialized() ){
cout<<"Can't initialize"<<endl;
return -1;
}
// Build the name object
pName = PyString_FromString(argv[1]);
if( !pName ){
cout<<"Can't build the object "<<endl;
return -1;
}
// Load the module object
pModule = PyImport_Import(pName);
if( !pModule ){
cout<<"Can't import the module "<<endl;
return -1;
}
// pDict is a borrowed reference
pDict = PyModule_GetDict(pModule);
if( !pDict ){
cout<<"Can't get the dict"<<endl;
return -1;
}
// pFunc is also a borrowed reference
pFunc = PyDict_GetItemString(pDict, argv[2]);
if( !pFunc || !PyCallable_Check(pFunc) ){
cout<<"can't get the function"<<endl;
return -1;
}
if (PyCallable_Check(pFunc))
{
// Prepare the argument list for the call
if( argc > 3 )
{
pArgs = PyTuple_New(argc - 3);
for (int i = 0; i < argc - 3; i++)
{
pValue = PyInt_FromLong(atoi(argv[i + 3]));
if (!pValue)
{
PyErr_Print();
return 1;
}
PyTuple_SetItem(pArgs, i, pValue);
}
pValue = PyObject_CallObject(pFunc, pArgs);
textfile3<<PyInt_AsLong(pValue)<<endl<<" worked1";
if (pArgs != NULL)
{
Py_DECREF(pArgs);
}
}
else
{
pValue = PyObject_CallObject(pFunc, NULL);
}
if (pValue != NULL)
{
printf("Return of call : %d\n", PyInt_AsLong(pValue));
textfile3<<PyInt_AsLong(pValue)<<endl<<" worked2";
Py_DECREF(pValue);
}
else
{
PyErr_Print();
}
textfile3.close();
}
// Clean up
Py_DECREF(pModule);
Py_DECREF(pName);
// Finish the Python Interpreter
Py_Finalize();
return 0;
}
我这样称呼这个函数:
^{pr2}$简单的python脚本:
def test_callsign(b):
fp_txt=open('allomate.txt','w+')
fp_txt.write('WHAT')
fp_txt.write(b)
if b=='MAH545':
fp_txt.write('MAHHH')
fp_txt.close()
return 1
elif b=='MAH544':
fp_txt.close()
return 2
elif b=='AFR545':
fp_txt.close()
return 3
else:
fp_txt.write('MAHHH22')
print 'No such airplane'
fp_txt.close()
return 10
在合金.txt它只写了“什么”。FP逯python_嵌入.txt也被创建了,并且有“-1,worked1”,所以问题需要在pValue上,因为某些原因它给出了NULL
提前谢谢你的帮助
我终于找到了解决办法。我不是将pValue解析为字符串,而是作为int
所以,我有:
它真的应该是:
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