小编米雪儿*_*米雪儿的帖子

在python的源代码中,有一些像这样的宏定义:

#define PyObject_HEAD    \
    int ob_refcnt;       \
    struct _typeobject *ob_type;


#define PyObject_VAR_HEAD  \
    PyObject_HEAD          \
    int ob_size; 


typedef struct _object {  
    PyObject_HEAD  
} PyObject;    

typedef struct _object {  
    PyObject_HEAD   
    long ob_ival;   
} PyIntObject;   

typedef struct {   
    PyObject_VAR_HEAD   
} PyVarObject;   

问题是,为什么PyObject*可以指向python中的每个对象(例如PyIntObject,PyVarObject)？