32、'help', 接收对象作为参数,更详细地返回该对象的所有属性和方法
class _Helper(builtins.object) | Define the builtin 'help'. | | This is a wrapper around pydoc.help that provides a helpful message | when 'help' is typed at the Python interactive prompt. | | Calling help() at the Python prompt starts an interactive help session. | Calling help(thing) prints help for the python object 'thing'. | | Methods defined here: | | __call__(self, *args, **kwds) | Call self as a function. | | __repr__(self) | Return repr(self). | | ---------------------------------------------------------------------- | Data descriptors defined here: | | __dict__ | dictionary for instance variables (if defined) | | __weakref__ | list of weak references to the object (if defined)