json数据怎么拆分字段写入到csv文件

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"新疆九州通医药有限公司", "FBUYER": "殷富", "LASTMODIFYTIME": null, "FCUSTOMERCODE": "0000099400X00001", "FPRODUCTCODE": "DZN009083G00J", "FDZSW": "九州众采", "IONAME": "新疆九州通", "EJDWMC": "药九九-阜康市博峰街社区卫生服务站"}, {"FSELLDATE": "2025-10-28 00:00:00", "FORDERNUMBER": "FDEXHR10920286", "FBILLER": "马勇", "FCUSTOMERNAME": "新疆药九九医药科技有限公司", "FUNIT": "盒", "EJDWBH": "0000145667X00001", "BEIZHU": "普票/可接受电票", "FBUSINESS_LICENSE_NO": "91650104MA79KT3H43", "FSPECIFICATION": "7g*9袋", "FQUANTITY": 10, "FDEPARTMENT": "调拨", "CREATETIME": null, "FVALIDITY": "2026-02-21 00:00:00", "FPRODUCTNAME": "小儿七星茶颗粒", "FPRICE": 7.2, "FBATCHNUMBER": "2402902", "FCUSTBUSINESSTYPE": "批发企业(县级以上)", "FAREA": "新疆维吾尔自治区乌鲁木齐市新市区", "FFACTORY": "广东化州中药厂制药有限公司", "FBRANCHORGNAME": "新疆九州通医药有限公司", "FBUYER": "殷富", "LASTMODIFYTIME": null, "FCUSTOMERCODE": "0000099400X00001", "FPRODUCTCODE": "DZN009083G00J", "FDZSW": "九州众采", "IONAME": "新疆九州通", "EJDWMC": "药九九-高新区(新市区)安宁渠镇建国中医诊所"}, {"FSELLDATE": "2025-10-31 00:00:00", "FORDERNUMBER": "FDEXHR10928358", "FBILLER": "马勇", "FCUSTOMERNAME": "新疆药九九医药科技有限公司", "FUNIT": "盒", "EJDWBH": "C650108121X00001", "BEIZHU": "普票/可接受电票", "FBUSINESS_LICENSE_NO": "91650104MA79KT3H43", "FSPECIFICATION": "10ml*6支", "FQUANTITY": 5, "FDEPARTMENT": "调拨", "CREATETIME": null, "FVALIDITY": "2026-04-14 00:00:00", "FPRODUCTNAME": "小儿止咳糖浆", "FPRICE": 6, "FBATCHNUMBER": "202404901", "FCUSTBUSINESSTYPE": "批发企业(县级以上)", "FAREA": "新疆维吾尔自治区乌鲁木齐市新市区", "FFACTORY": "广东化州中药厂制药有限公司", "FBRANCHORGNAME": "新疆九州通医药有限公司", "FBUYER": "殷富", "LASTMODIFYTIME": null, "FCUSTOMERCODE": "0000099400X00001", "FPRODUCTCODE": "EZM041596G00U", "FDZSW": "九州众采", "IONAME": "新疆九州通", "EJDWMC": "药九九-乌鲁木齐众人康医药有限公司"}, {"FSELLDATE": "2025-10-29 00:00:00", "FORDERNUMBER": "FDEXHR10923284", "FBILLER": "马勇", "FCUSTOMERNAME": "新疆药九九医药科技有限公司", "FUNIT": "盒", "EJDWBH": "C652325126X00001", "BEIZHU": "普票/可接受电票", "FBUSINESS_LICENSE_NO": "91650104MA79KT3H43", "FSPECIFICATION": "10ml*6支", "FQUANTITY": 3, "FDEPARTMENT": "调拨", "CREATETIME": null, "FVALIDITY": "2026-04-14 00:00:00", "FPRODUCTNAME": "小儿止咳糖浆", "FPRICE": 6, "FBATCHNUMBER": "202404901", "FCUSTBUSINESSTYPE": "批发企业(县级以上)", "FAREA": "新疆维吾尔自治区乌鲁木齐市新市区", "FFACTORY": "广东化州中药厂制药有限公司", "FBRANCHORGNAME": "新疆九州通医药有限公司", "FBUYER": "殷富", "LASTMODIFYTIME": null, "FCUSTOMERCODE": "0000099400X00001", "FPRODUCTCODE": "EZM041596G00U", "FDZSW": "九州众采", "IONAME": "新疆九州通", "EJDWMC": "药九九-奇台县济善堂大药房"}, {"FSELLDATE": "2025-11-11 00:00:00", "FORDERNUMBER": "FDEXHR10956202", "FBILLER": "马勇", "FCUSTOMERNAME": "新疆药九九医药科技有限公司", "FUNIT": "瓶", "EJDWBH": "E652301551X00001", "BEIZHU": null, "FBUSINESS_LICENSE_NO": "91650104MA79KT3H43", "FSPECIFICATION": "10mg*100s 糖衣", "FQUANTITY": 3, "FDEPARTMENT": "调拨", "CREATETIME": null, "FVALIDITY": "2026-10-15 00:00:00", "FPRODUCTNAME": "硝苯地平片", "FPRICE": 2.48, "FBATCHNUMBER": "2310503", "FCUSTBUSINESSTYPE": "批发企业(县级以上)", "FAREA": "新疆维吾尔自治区乌鲁木齐市新市区", "FFACTORY": "广东香雪智慧中医药产业有限公司", "FBRANCHORGNAME": "新疆九州通医药有限公司", "FBUYER": "殷富", "LASTMODIFYTIME": null, "FCUSTOMERCODE": "0000099400X00001", "FPRODUCTCODE": "BMC002040C009", "FDZSW": "线下", "IONAME": "新疆九州通", "EJDWMC": "药九九-昌吉市中山路街道田园社区卫生服务站"}, {"FSELLDATE": "2025-11-23 00:00:00", "FORDERNUMBER": "FDEXHR10980873", "FBILLER": "龚美玲", "FCUSTOMERNAME": "新疆药九九医药科技有限公司", "FUNIT": "瓶", "EJDWBH": "0000134951X00001", "BEIZHU": "普票/可接受电票", "FBUSINESS_LICENSE_NO": "91650104MA79KT3H43", "FSPECIFICATION": "10mg*100s 糖衣", "FQUANTITY": 2, "FDEPARTMENT": "调拨", "CREATETIME": null, "FVALIDITY": "2026-10-15 00:00:00", "FPRODUCTNAME": "硝苯地平片", "FPRICE": 2.48, "FBATCHNUMBER": "2310503", "FCUSTBUSINESSTYPE": "批发企业(县级以上)", "FAREA": "新疆维吾尔自治区乌鲁木齐市新市区", "FFACTORY": "广东香雪智慧中医药产业有限公司", "FBRANCHORGNAME": "新疆九州通医药有限公司", "FBUYER": "殷富", "LASTMODIFYTIME": null, "FCUSTOMERCODE": "0000099400X00001", "FPRODUCTCODE": "BMC002040C009", "FDZSW": "九州众采", "IONAME": "新疆九州通", "EJDWMC": "药九九-新疆以琳天使口腔医疗有限公司"}, {"FSELLDATE": "2025-11-06 00:00:00", "FORDERNUMBER": "FDEXHR10943620", "FBILLER": "马勇", "FCUSTOMERNAME": "新疆药九九医药科技有限公司", "FUNIT": "瓶", "EJDWBH": "E659001186X00001", "BEIZHU": "普票/可接受电票", "FBUSINESS_LICENSE_NO": "91650104MA79KT3H43", "FSPECIFICATION": "10mg*100s 糖衣", "FQUANTITY": 1, "FDEPARTMENT": "调拨", "CREATETIME": null, "FVALIDITY": "2026-10-15 00:00:00", "FPRODUCTNAME": "硝苯地平片", "FPRICE": 2.48, "FBATCHNUMBER": "2310503", "FCUSTBUSINESSTYPE": "批发企业(县级以上)", "FAREA": "新疆维吾尔自治区乌鲁木齐市新市区", "FFACTORY": "广东香雪智慧中医药产业有限公司", "FBRANCHORGNAME": "新疆九州通医药有限公司", "FBUYER": "殷富", "LASTMODIFYTIME": null, "FCUSTOMERCODE": "0000099400X00001", "FPRODUCTCODE": "BMC002040C009", "FDZSW": "九州众采", "IONAME": "新疆九州通", "EJDWMC": "药九九-石河子开发区张应显西医内科诊所"}, {"FSELLDATE": "2025-11-04 00:00:00", "FORDERNUMBER": "FDEXHR10936352", "FBILLER": "马勇", "FCUSTOMERNAME": "新疆药九九医药科技有限公司", "FUNIT": "瓶", "EJDWBH": "E652301551X00001", "BEIZHU": null, "FBUSINESS_LICENSE_NO": "91650104MA79KT3H43", "FSPECIFICATION": "10mg*100s 糖衣", "FQUANTITY": 2, "FDEPARTMENT": "调拨", "CREATETIME": null, "FVALIDITY": "2026-10-15 00:00:00", "FPRODUCTNAME": "硝苯地平片", "FPRICE": 2.48, "FBATCHNUMBER": "2310503", "FCUSTBUSINESSTYPE": "批发企业(县级以上)", "FAREA": "新疆维吾尔自治区乌鲁木齐市新市区", "FFACTORY": "广东香雪智慧中医药产业有限公司", "FBRANCHORGNAME": "新疆九州通医药有限公司", "FBUYER": "殷富", "LASTMODIFYTIME": null, "FCUSTOMERCODE": "0000099400X00001", "FPRODUCTCODE": "BMC002040C009", "FDZSW": "线下", "IONAME": "新疆九州通", "EJDWMC": "药九九-昌吉市中山路街道田园社区卫生服务站"}, {"FSELLDATE": "2025-11-12 00:00:00", "FORDERNUMBER": "FDEXHR10958923", "FBILLER": "马勇", "FCUSTOMERNAME": "新疆药九九医药科技有限公司", "FUNIT": "瓶", "EJDWBH": "E650104707X00001", "BEIZHU": "普票/可接受电票", "FBUSINESS_LICENSE_NO": "91650104MA79KT3H43", "FSPECIFICATION": "10mg*100s 糖衣", "FQUANTITY": 20, "FDEPARTMENT": "调拨", "CREATETIME": null, "FVALIDITY": "2026-10-15 00:00:00", "FPRODUCTNAME": "硝苯地平片", "FPRICE": 2.48, "FBATCHNUMBER": "2310503", "FCUSTBUSINESSTYPE": "批发企业(县级以上)", "FAREA": "新疆维吾尔自治区乌鲁木齐市新市区", "FFACTORY": "广东香雪智慧中医药产业有限公司", "FBRANCHORGNAME": "新疆九州通医药有限公司", "FBUYER": "殷富", "LASTMODIFYTIME": null, "FCUSTOMERCODE": "0000099400X00001", "FPRODUCTCODE": "BMC002040C009", "FDZSW": "九州众采", "IONAME": "新疆九州通", "EJDWMC": "药九九-乌鲁木齐中源液康血液透析中心(有限公司)"}, {"FSELLDATE": "2025-11-17 00:00:00", "FORDERNUMBER": "FDEXHR10967561", "FBILLER": "马勇", "FCUSTOMERNAME": "新疆伊犁九州通药业有限公司", "FUNIT": "瓶", "EJDWBH": "0000107557X00001", "BEIZHU": "普票/可接受电票", "FBUSINESS_LICENSE_NO": "916540027898657648", "FSPECIFICATION": "10mg*100s 糖衣", "FQUANTITY": 3, "FDEPARTMENT": "调拨", "CREATETIME": null, "FVALIDITY": "2026-10-15 00:00:00", "FPRODUCTNAME": "硝苯地平片", "FPRICE": 2.48, "FBATCHNUMBER": "2310503", "FCUSTBUSINESSTYPE": "批发企业(县级以上)", "FAREA": "新疆维吾尔自治区伊犁哈萨克自治州伊宁市", "FFACTORY": "广东香雪智慧中医药产业有限公司", "FBRANCHORGNAME": "新疆九州通医药有限公司", "FBUYER": "殷富", "LASTMODIFYTIME": null, "FCUSTOMERCODE": "J654002001X002XA", "FPRODUCTCODE": "BMC002040C009", "FDZSW": "九州众采", "IONAME": "新疆九州通", "EJDWMC": "伊犁-新源县康德药业有限公司"}, {"FSELLDATE": "2025-11-19 00:00:00", "FORDERNUMBER": "FD2XHR02942754", "FBILLER": "张燕", "FCUSTOMERNAME": "新源县康德药业有限公司", "FUNIT": "瓶", "EJDWBH": null, "BEIZHU": "普票/可接受电票", "FBUSINESS_LICENSE_NO": "91654025MA7EPN36XX", "FSPECIFICATION": "10mg*100s 糖衣", "FQUANTITY": 3, "FDEPARTMENT": "终端业务部", "CREATETIME": null, "FVALIDITY": "2026-10-15 00:00:00", "FPRODUCTNAME": "硝苯地平片", "FPRICE": 2.8, "FBATCHNUMBER": "2310503", "FCUSTBUSINESSTYPE": "单体药店-万店", "FAREA": "新疆维吾尔自治区伊犁哈萨克自治州新源县", "FFACTORY": "广东香雪智慧中医药产业有限公司", "FBRANCHORGNAME": "新疆伊犁九州通药业有限公司", "FBUYER": "裴俊明", "LASTMODIFYTIME": null, "FCUSTOMERCODE": "0000107557X00001", "FPRODUCTCODE": "BMC002040C009", "FDZSW": "九州众采", "IONAME": "伊犁九州通", "EJDWMC": null}, {"FSELLDATE": "2025-11-19 00:00:00", "FORDERNUMBER": "FDEXTR01104309", "FBILLER": "吴帆", "FCUSTOMERNAME": "乌鲁木齐市米东区东路街道益民社区卫生服务站", "FUNIT": "瓶", "EJDWBH": null, "BEIZHU": "上架完成:2025-11-19 20:40:01", "FBUSINESS_LICENSE_NO": null, "FSPECIFICATION": "10mg*100s 糖衣", "FQUANTITY": -1, "FDEPARTMENT": "医院事业部", "CREATETIME": null, "FVALIDITY": "2026-10-15 00:00:00", "FPRODUCTNAME": "硝苯地平片", "FPRICE": 2.8, "FBATCHNUMBER": "2310503", "FCUSTBUSINESSTYPE": "社区服务中心(站)", "FAREA": "新疆维吾尔自治区乌鲁木齐市米东区", "FFACTORY": "广东香雪智慧中医药产业有限公司", "FBRANCHORGNAME": "新疆九州通医药有限公司", "FBUYER": "殷富", "LASTMODIFYTIME": null, "FCUSTOMERCODE": "0000098157X00001", "FPRODUCTCODE": "BMC002040C009", "FDZSW": "线下", "IONAME": "新疆九州通", "EJDWMC": null}]怎么把这个数据依次读取每个元素里的每个字段，然后存入到csv文档