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python实现class对象转换成json/字典的方法

yipeiwu_com6年前 (2020-03-06)Python基础

本文实例讲述了python实现class对象转换成json字典的方法。分享给大家供大家参考，具体如下：

# -*- encoding: UTF-8 -*-
class Student:
  name = ''
  age = 0
  def __init__(self, name, age):
    self.name = name
    self.age = age
def convert_to_dict(obj):
  '''把Object对象转换成Dict对象'''
  dict = {}
  dict.update(obj.__dict__)
  return dict
def convert_to_dicts(objs):
  '''把对象列表转换为字典列表'''
  obj_arr = []
  for o in objs:
    #把Object对象转换成Dict对象
    dict = {}
    dict.update(o.__dict__)
    obj_arr.append(dict)
  return obj_arr
def class_to_dict(obj):
  '''把对象(支持单个对象、list、set)转换成字典'''
  is_list = obj.__class__ == [].__class__
  is_set = obj.__class__ == set().__class__
  if is_list or is_set:
    obj_arr = []
    for o in obj:
      #把Object对象转换成Dict对象
      dict = {}
      dict.update(o.__dict__)
      obj_arr.append(dict)
    return obj_arr
  else:
    dict = {}
    dict.update(obj.__dict__)
    return dict
stu = Student('zhangsan', 20)
print '-----------'
print convert_to_dict(stu)
print '-----------'
print convert_to_dicts([stu, stu])
print '-----------'
print class_to_dict(stu)
print '-----------'
print class_to_dict([stu, stu])
stua = Student('zhangsan', 20)
stub = Student('lisi', 10)
stu_set = set()
stu_set.add(stua)
stu_set.add(stub)
print class_to_dict(stu_set)

运行结果如下：

-----------
{'age': 20, 'name': 'zhangsan'}
-----------
[{'age': 20, 'name': 'zhangsan'}, {'age': 20, 'name': 'zhangsan'}]
-----------
{'age': 20, 'name': 'zhangsan'}
-----------
[{'age': 20, 'name': 'zhangsan'}, {'age': 20, 'name': 'zhangsan'}]
[{'age': 10, 'name': 'lisi'}, {'age': 20, 'name': 'zhangsan'}]

希望本文所述对大家Python程序设计有所帮助。