怎么把python的dict存为json格式文件

使用dumps将dict转化成json格式写入到json文件中

import json

def dict_to_json():
    dict = {}
    dict['name'] = '123'
    dict['age'] = 10
    dict['sex'] = 'male'
    #转换成json
    j = json.dumps(dict)
    #写到json文件
    fileObject = open('jsonFile.json', 'w')
    fileObject.write(j)
    fileObject.close()

if __name__ == '__main__':
    dict_to_json()

import json
my_dict = {'year': '2018', 'day': '12-04'}
with open('my_dict.json', 'w') as outfile:  
    json.dump(my_dict, outfile)