51.md

@author jackzhenguo
@desc 
@date 2019/3/4

51 help 一键帮助　

返回对象的帮助文档

In [1]: help(xiaoming)
Help on Student in module __main__ object:

class Student(builtins.object)
 |  Methods defined here:
 |
 |  __init__(self, id, name)
 |
 |  __repr__(self)
 |
 |  Data descriptors defined here:
 |
 |  __dict__
 |      dictionary for instance variables (if defined)
 |
 |  __weakref__
 |      list of weak references to the object (if defined)

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