# coding=utf-8
ALL_VARS = {}
def set_var(key, value):
    ALL_VARS[key] = value
def get_var(key):
    return ALL_VARS.get(key, "not exist this key")
class T(object):
    def __init__(self):
        self.name = "ssss"
        self.age = 11111
if __name__ == ‘__main__‘:
    t = T()
    setattr(t, "name", "zhansgs")
    # change attr 
    t.__setattr__("age", 999)
    # add attr
    t.__setattr__("keys","values")
    # get attr 
    print(t.name, t.age,t.__getattribute__("keys"),t.__dict__)
   
    """
    ###### output:
    zhansgs
    999
    values
    {‘name‘: ‘zhansgs‘, ‘age‘: 999, ‘keys‘: ‘values‘}
    """
原文:https://www.cnblogs.com/SunshineKimi/p/11296824.html