python从数据取出数据转为json型

               

其实也没什么难的，之前卡住了，写个博客以后备用

class A():    def __init__(self):        self.db = pymysql.connect(db='', host='localhost', port=3306, user='', passwd='',                                  charset='utf8')        self.cursor = self.db.cursor()    def B(self,phone_user):        sql = 'select * from `%s`' % (phone_user)        self.cursor.execute(sql)        rows = self.cursor.fetchall()        objects_list = []        for row in rows:            d = collections.OrderedDict()            d['cardnum'] = row[0]            d['bankname'] = row[1]            d['phonenumber'] = row[2]            d['rest'] = row[3]            d['id_main'] = row[4]            objects_list.append(d)                 j = json.dumps(objects_list)        return j

           

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