python json 模塊 讀取文件 和 解析字符串

import json
with open('user.txt', 'r', encoding='utf-8') as f:
    ret_dic = json.load(f)
    #print(type(ret_dic)) # 結果 <class 'dict'>
    #print(ret_dic) # 結果 pengjunlee
    ss="";
    for i in ret_dic:
       ss=ss+i['name']+"="+i['value']+";"
    print(ss)

ret_dic = json.dumps(html_doc,ensure_ascii=False)
print(ret_dic)
print(ret_dic['data']['b2cOrderId'])

    print(html_doc)
    #ret_dic = json.dumps(html_doc,ensure_ascii=False)
    ret_dic1=json.loads(html_doc)
    print(ret_dic1)