PyTypeObject GreetingType= {
    PyVarObject_HEAD_INIT(&PyType_Type,0)
    "Greeting",                     //tp_name，类型名字，注意同时包含模块名，以点分隔
    sizeof(GreetingObject),         //tp_basicsize，调用PyObject_New()时需要分配多少内存
    0,                              //tp_itemsize，对列表和字符串，这里是可变长度，暂时忽略
    (destructor)Greeting_dealloc,   //tp_dealloc
    0,0,0,0,0,                      //tp_print,tp_getattr,tp_setattr,tp_compare,tp_repr
    0,0,0,0,0,                      //tp_as_number,tp_as_sequence,tp_as_mapping,tp_as_hash,tp_call
    0,0,0,0,                        //tp_str,tp_getattro,tp_setattro,tp_as_buffer
    Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,//tp_flags
    "Greeting Objecct",             //tp_doc
    0,0,0,0,                        //tp_traverse,tp_clear,tp_richcompare,tp_weaklistoffset
    0,0,                            //tp_iter,tp_iternext
    Greeting_methods,               //struct PyMethodDef *tp_methods
    Greeting_members,               //struct PyMemberDef *tp_members
    0,0,0,0,0,                      //tp_getset,tp_base,tp_dict,tp_descr_get,tp_descr_set
    0,                              //tp_dictoffset
    (initproc)Greeting_Init,        //tp_init
    0,                              //tp_alloc
    Greeting_New,                   //tp_new
    0,0,0,0,0,                      //tp_free,tp_is_gc,tp_bases,tp_mro,tp_cache
    0,0,0,0,                        //tp_subclasses,tp_weaklist,tp_del,tp_version_tag
};