读取前的app.json文件 

直接上代码

import json
path = r"E:\MKqrcode\app.json"
## app_info 是一个字典
app_info = {
   'appid': '123456',
   'deptid': '123456',
   'ver': '123456',
   'deptname': 'qqqqqqq',
   'platcode': 'qqqqqqq'
}

## 读取app.json文件并修改数据
with open(path, 'r', encoding='utf-8') as f:
   info_dict = json.load(f)
   info_dict['AppID'] = app_info['appid']
   info_dict['DepartmentId'] = app_info['deptid']
   info_dict['AppVersion'] = app_info['ver']
   info_dict['DepartmentName'] = app_info['deptname']
   info_dict['PlatCode'] = app_info['platcode']
   info_dict['AppNameKey'] = pinyin.get_initial(app_info["deptname"], delimiter='')

## 将info_dict写入app.json文件
with open(path, 'w', encoding='utf-8') as f1:
   f1.write(json.dumps(info_dict, indent=4, ensure_ascii=False))

写入后的文件