级联选择器全国省、市联动数据

        <el-form-item label="省/市" prop="city">
          <el-cascader class="chooseaddress"
            v-model="selectedOptions"
            :options="options"
            :props="props"
            placeholder="请选择省市"
            @change="handleChange"
          ></el-cascader>
        </el-form-item>
    props: {
        value: 'name', // 显示的值字段名
        label: 'name', // 显示的文本字段名
        children: 'children' // 子级字段名
      },
      selectedOptions: [], // 选择的省市数组

option数据如下:

options: [
      {
        name: '北京市',
        children: [
          {
            name: '东城区'
          },
          {
            name: '西城区'
          },
          {
            name: '朝阳区'
          },
          {
            name: '丰台区'
          },
          {
            name: '石景山区'
          },
          {
            name: '海淀区'
          },
          {
            name: '门头沟区'
          },
          {
            name: '房山区'
          },
          {
            name: '通州区'
          },
          {
            name: '顺义区'
          },
          {
            name: '昌平区'
          },
          {
            name: '大兴区'
          },
          {
            name: '怀柔区'
          },
          {
            name: '平谷区'
          },
          {
            name: '密云区'
          },
          {
            name: '延庆区'
          }
        ]
      },
      {
        name: '上海市',
        children: [
          {
            name: '黄浦区'
          },
          {
            name: '徐汇区'
          },
          {
            name: '长宁区'
          },
          {
            name: '静安区'
          },
          {
            name: '普陀区'
          },
          {
            name: '虹口区'
          },
          {
            name: '杨浦区'
          },
          {
            name: '闵行区'
          },
          {
            name: '宝山区'
          },
          {
            name: '嘉定区'
          },
          {
            name: '浦东新区'
          },
          {
            name: '金山区'
          },
          {
            name: '松江区'
          },
          {
            name: '青浦区'
          },
          {
            name: '奉贤区'
          },
          {
            name: '崇明区'
          }
        ]
      },
      {
        name: '天津市',
        children: [
          {
            name: '和平区'
          },
          {
            name: '河东区'
          },
          {
            name: '河西区'
          },
          {
            name: '南开区'
          },
          {
            name: '河北区'
          },
          {
            name: '红桥区'
          },
          {
            name: '东丽区'
          },
          {
            name: '西青区'
          },
          {
            name: '津南区'
          },
          {
            name: '北辰区'
          },
          {
            name: '武清区'
          },
          {
            name: '宝坻区'
          },
          {
            name: '滨海新区'
          },
          {
            name: '宁河区'
          },
          {
            name: '静海区'
          },
          {
            name: '蓟州区'
          }
        ]
      },
      {
        name: '河北省',
        children: [
          {
            name: '石家庄市'
          },
          {
            name: '唐山市'
          },
          {
            name: '秦皇岛市'
          },
          {
            name: '邯郸市'
          },
          {
            name: '邢台市'
          },
          {
            name: '保定市'
          },
          {
            name: '张家口市'
          },
          {
            name: '承德市'
          },
          {
            name: '沧州市'
          },
          {
            name: '廊坊市'
          },
          {
            name: '衡水市'
          }
        ]
      },
      {
        name: '山西省',
        children: [
          {
            name: '太原市'
          },
          {
            name: '大同市'
          },
          {
            name: '阳泉市'
          },
          {
            name: '长治市'
          },
          {
            name: '晋城市'
          },
          {
            name: '朔州市'
          },
          {
            name: '晋中市'
          },
          {
            name: '运城市'
          },
          {
            name: '忻州市'
          },
          {
            name: '临汾市'
          },
          {
            name: '吕梁市'
          }
        ]
      },
      {
        name: '内蒙古自治区',
        children: [
          {
            name: '呼和浩特市'
          },
          {
            name: '包头市'
          },
          {
            name: '乌海市'
          },
          {
            name: '赤峰市'
          },
          {
            name: '通辽市'
          },
          {
            name: '鄂尔多斯市'
          },
          {
            name: '呼伦贝尔市'
          },
          {
            name: '巴彦淖尔市'
          },
          {
            name: '乌兰察布市'
          },
          {
            name: '兴安盟'
          },
          {
            name: '锡林郭勒盟'
          },
          {
            name: '阿拉善盟'
          }
        ]
      },
      {
        name: '广西壮族自治区',
        children: [
          {
            name: '南宁市'
          },
          {
            name: '柳州市'
          },
          {
            name: '桂林市'
          },
          {
            name: '梧州市'
          },
          {
            name: '北海市'
          },
          {
            name: '防城港市'
          },
          {
            name: '钦州市'
          },
          {
            name: '贵港市'
          },
          {
            name: '玉林市'
          },
          {
            name: '百色市'
          },
          {
            name: '贺州市'
          },
          {
            name: '河池市'
          },
          {
            name: '来宾市'
          },
          {
            name: '崇左市'
          }
        ]
      },
      {
        name: '辽宁省',
        children: [
          {
            name: '沈阳市'
          },
          {
            name: '大连市'
          },
          {
            name: '鞍山市'
          },
          {
            name: '抚顺市'
          },
          {
            name: '本溪市'
          },
          {
            name: '丹东市'
          },
          {
            name: '锦州市'
          },
          {
            name: '营口市'
          },
          {
            name: '阜新市'
          },
          {
            name: '辽阳市'
          },
          {
            name: '盘锦市'
          },
          {
            name: '铁岭市'
          },
          {
            name: '朝阳市'
          },
          {
            name: '葫芦岛市'
          }
        ]
      },
      {
        name: '吉林省',
        children: [
          {
            name: '长春市'
          },
          {
            name: '吉林市'
          },
          {
            name: '四平市'
          },
          {
            name: '辽源市'
          },
          {
            name: '通化市'
          },
          {
            name: '白山市'
          },
          {
            name: '松原市'
          },
          {
            name: '白城市'
          },
          {
            name: '延边朝鲜族自治州'
          }
        ]
      },
      {
        name: '黑龙江省',
        children: [
          {
            name: '哈尔滨市'
          },
          {
            name: '齐齐哈尔市'
          },
          {
            name: '鸡西市'
          },
          {
            name: '鹤岗市'
          },
          {
            name: '双鸭山市'
          },
          {
            name: '大庆市'
          },
          {
            name: '伊春市'
          },
          {
            name: '佳木斯市'
          },
          {
            name: '七台河市'
          },
          {
            name: '牡丹江市'
          },
          {
            name: '黑河市'
          },
          {
            name: '绥化市'
          },
          {
            name: '大兴安岭地区'
          }
        ]
      },
      {
        name: '江苏省',
        children: [
          {
            name: '南京市'
          },
          {
            name: '无锡市'
          },
          {
            name: '徐州市'
          },
          {
            name: '常州市'
          },
          {
            name: '苏州市'
          },
          {
            name: '南通市'
          },
          {
            name: '连云港市'
          },
          {
            name: '淮安市'
          },
          {
            name: '盐城市'
          },
          {
            name: '扬州市'
          },
          {
            name: '镇江市'
          },
          {
            name: '泰州市'
          },
          {
            name: '宿迁市'
          }
        ]
      },
      {
        name: '浙江省',
        children: [
          {
            name: '杭州市'
          },
          {
            name: '宁波市'
          },
          {
            name: '温州市'
          },
          {
            name: '嘉兴市'
          },
          {
            name: '湖州市'
          },
          {
            name: '绍兴市'
          },
          {
            name: '金华市'
          },
          {
            name: '衢州市'
          },
          {
            name: '舟山市'
          },
          {
            name: '台州市'
          },
          {
            name: '丽水市'
          }
        ]
      },
      {
        name: '安徽省',
        children: [
          {
            name: '合肥市'
          },
          {
            name: '芜湖市'
          },
          {
            name: '蚌埠市'
          },
          {
            name: '淮南市'
          },
          {
            name: '马鞍山市'
          },
          {
            name: '淮北市'
          },
          {
            name: '铜陵市'
          },
          {
            name: '安庆市'
          },
          {
            name: '黄山市'
          },
          {
            name: '滁州市'
          },
          {
            name: '阜阳市'
          },
          {
            name: '宿州市'
          },
          {
            name: '六安市'
          },
          {
            name: '亳州市'
          },
          {
            name: '池州市'
          },
          {
            name: '宣城市'
          }
        ]
      },
      {
        name: '福建省',
        children: [
          {
            name: '福州市'
          },
          {
            name: '厦门市'
          },
          {
            name: '莆田市'
          },
          {
            name: '三明市'
          },
          {
            name: '泉州市'
          },
          {
            name: '漳州市'
          },
          {
            name: '南平市'
          },
          {
            name: '龙岩市'
          },
          {
            name: '宁德市'
          }
        ]
      },
      {
        name: '江西省',
        children: [
          {
            name: '南昌市'
          },
          {
            name: '景德镇市'
          },
          {
            name: '萍乡市'
          },
          {
            name: '九江市'
          },
          {
            name: '新余市'
          },
          {
            name: '鹰潭市'
          },
          {
            name: '赣州市'
          },
          {
            name: '吉安市'
          },
          {
            name: '宜春市'
          },
          {
            name: '抚州市'
          },
          {
            name: '上饶市'
          }
        ]
      },
      {
        name: '山东省',
        children: [
          {
            name: '济南市'
          },
          {
            name: '青岛市'
          },
          {
            name: '淄博市'
          },
          {
            name: '枣庄市'
          },
          {
            name: '东营市'
          },
          {
            name: '烟台市'
          },
          {
            name: '潍坊市'
          },
          {
            name: '济宁市'
          },
          {
            name: '泰安市'
          },
          {
            name: '威海市'
          },
          {
            name: '日照市'
          },
          {
            name: '莱芜市'
          },
          {
            name: '临沂市'
          },
          {
            name: '德州市'
          },
          {
            name: '聊城市'
          },
          {
            name: '滨州市'
          },
          {
            name: '菏泽市'
          }
        ]
      },
      {
        name: '河南省',
        children: [
          {
            name: '郑州市'
          },
          {
            name: '开封市'
          },
          {
            name: '洛阳市'
          },
          {
            name: '平顶山市'
          },
          {
            name: '安阳市'
          },
          {
            name: '鹤壁市'
          },
          {
            name: '新乡市'
          },
          {
            name: '焦作市'
          },
          {
            name: '濮阳市'
          },
          {
            name: '许昌市'
          },
          {
            name: '漯河市'
          },
          {
            name: '三门峡市'
          },
          {
            name: '南阳市'
          },
          {
            name: '商丘市'
          },
          {
            name: '信阳市'
          },
          {
            name: '周口市'
          },
          {
            name: '驻马店市'
          },
          {
            name: '济源市'
          }
        ]
      },
      {
        name: '湖北省',
        children: [
          {
            name: '武汉市'
          },
          {
            name: '黄石市'
          },
          {
            name: '十堰市'
          },
          {
            name: '宜昌市'
          },
          {
            name: '襄阳市'
          },
          {
            name: '鄂州市'
          },
          {
            name: '荆门市'
          },
          {
            name: '孝感市'
          },
          {
            name: '荆州市'
          },
          {
            name: '黄冈市'
          },
          {
            name: '咸宁市'
          },
          {
            name: '随州市'
          },
          {
            name: '恩施土家族苗族自治州'
          },
          {
            name: '仙桃市'
          },
          {
            name: '潜江市'
          },
          {
            name: '天门市'
          },
          {
            name: '神农架林区'
          }
        ]
      },
      {
        name: '湖南省',
        children: [
          {
            name: '长沙市'
          },
          {
            name: '株洲市'
          },
          {
            name: '湘潭市'
          },
          {
            name: '衡阳市'
          },
          {
            name: '邵阳市'
          },
          {
            name: '岳阳市'
          },
          {
            name: '常德市'
          },
          {
            name: '张家界市'
          },
          {
            name: '益阳市'
          },
          {
            name: '郴州市'
          },
          {
            name: '永州市'
          },
          {
            name: '怀化市'
          },
          {
            name: '娄底市'
          },
          {
            name: '湘西土家族苗族自治州'
          }
        ]
      },
      {
        name: '广东省',
        children: [
          {
            name: '广州市'
          },
          {
            name: '韶关市'
          },
          {
            name: '深圳市'
          },
          {
            name: '珠海市'
          },
          {
            name: '汕头市'
          },
          {
            name: '佛山市'
          },
          {
            name: '江门市'
          },
          {
            name: '湛江市'
          },
          {
            name: '茂名市'
          },
          {
            name: '肇庆市'
          },
          {
            name: '惠州市'
          },
          {
            name: '梅州市'
          },
          {
            name: '汕尾市'
          },
          {
            name: '河源市'
          },
          {
            name: '阳江市'
          },
          {
            name: '清远市'
          },
          {
            name: '东莞市'
          },
          {
            name: '中山市'
          },
          {
            name: '潮州市'
          },
          {
            name: '揭阳市'
          },
          {
            name: '云浮市'
          }
        ]
      },
      {
        name: '广西壮族自治区',
        children: [
          {
            name: '南宁市'
          },
          {
            name: '柳州市'
          },
          {
            name: '桂林市'
          },
          {
            name: '梧州市'
          },
          {
            name: '北海市'
          },
          {
            name: '防城港市'
          },
          {
            name: '钦州市'
          },
          {
            name: '贵港市'
          },
          {
            name: '玉林市'
          },
          {
            name: '百色市'
          },
          {
            name: '贺州市'
          },
          {
            name: '河池市'
          },
          {
            name: '来宾市'
          },
          {
            name: '崇左市'
          }
        ]
      },
      {
        name: '海南省',
        children: [
          {
            name: '海口市'
          },
          {
            name: '三亚市'
          },
          {
            name: '三沙市'
          },
          {
            name: '儋州市'
          },
          {
            name: '五指山市'
          },
          {
            name: '琼海市'
          },
          {
            name: '文昌市'
          },
          {
            name: '万宁市'
          },
          {
            name: '东方市'
          },
          {
            name: '定安县'
          },
          {
            name: '屯昌县'
          },
          {
            name: '澄迈县'
          },
          {
            name: '临高县'
          },
          {
            name: '白沙黎族自治县'
          },
          {
            name: '昌江黎族自治县'
          },
          {
            name: '乐东黎族自治县'
          },
          {
            name: '陵水黎族自治县'
          },
          {
            name: '保亭黎族苗族自治县'
          },
          {
            name: '琼中黎族苗族自治县'
          }
        ]
      },
      {
        name: '重庆市',
        children: [
          {
            name: '渝中区'
          },
          {
            name: '大渡口区'
          },
          {
            name: '江北区'
          },
          {
            name: '沙坪坝区'
          },
          {
            name: '九龙坡区'
          },
          {
            name: '南岸区'
          },
          {
            name: '北碚区'
          },
          {
            name: '渝北区'
          },
          {
            name: '巴南区'
          },
          {
            name: '黔江区'
          },
          {
            name: '长寿区'
          },
          {
            name: '江津区'
          },
          {
            name: '合川区'
          },
          {
            name: '永川区'
          },
          {
            name: '南川区'
          },
          {
            name: '綦江区'
          },
          {
            name: '大足区'
          },
          {
            name: '璧山区'
          },
          {
            name: '铜梁区'
          },
          {
            name: '潼南区'
          },
          {
            name: '荣昌区'
          },
          {
            name: '开州区'
          },
          {
            name: '梁平区'
          },
          {
            name: '武隆区'
          },
          {
            name: '城口县'
          },
          {
            name: '丰都县'
          },
          {
            name: '垫江县'
          },
          {
            name: '忠县'
          },
          {
            name: '云阳县'
          },
          {
            name: '奉节县'
          },
          {
            name: '巫山县'
          },
          {
            name: '巫溪县'
          },
          {
            name: '石柱土家族自治县'
          },
          {
            name: '秀山土家族苗族自治县'
          },
          {
            name: '酉阳土家族苗族自治县'
          },
          {
            name: '彭水苗族土家族自治县'
          }
        ]
      },
      {
        name: '四川省',
        children: [
          {
            name: '成都市'
          },
          {
            name: '自贡市'
          },
          {
            name: '攀枝花市'
          },
          {
            name: '泸州市'
          },
          {
            name: '德阳市'
          },
          {
            name: '绵阳市'
          },
          {
            name: '广元市'
          },
          {
            name: '遂宁市'
          },
          {
            name: '内江市'
          },
          {
            name: '乐山市'
          },
          {
            name: '南充市'
          },
          {
            name: '眉山市'
          },
          {
            name: '宜宾市'
          },
          {
            name: '广安市'
          },
          {
            name: '达州市'
          },
          {
            name: '雅安市'
          },
          {
            name: '巴中市'
          },
          {
            name: '资阳市'
          },
          {
            name: '阿坝藏族羌族自治州'
          },
          {
            name: '甘孜藏族自治州'
          },
          {
            name: '凉山彝族自治州'
          }
        ]
      },
      {
        name: '贵州省',
        children: [
          {
            name: '贵阳市'
          },
          {
            name: '六盘水市'
          },
          {
            name: '遵义市'
          },
          {
            name: '安顺市'
          },
          {
            name: '毕节市'
          },
          {
            name: '铜仁市'
          },
          {
            name: '黔西南布依族苗族自治州'
          },
          {
            name: '黔东南苗族侗族自治州'
          },
          {
            name: '黔南布依族苗族自治州'
          }
        ]
      },
      {
        name: '云南省',
        children: [
          {
            name: '昆明市'
          },
          {
            name: '曲靖市'
          },
          {
            name: '玉溪市'
          },
          {
            name: '保山市'
          },
          {
            name: '昭通市'
          },
          {
            name: '丽江市'
          },
          {
            name: '普洱市'
          },
          {
            name: '临沧市'
          },
          {
            name: '楚雄彝族自治州'
          },
          {
            name: '红河哈尼族彝族自治州'
          },
          {
            name: '文山壮族苗族自治州'
          },
          {
            name: '西双版纳傣族自治州'
          },
          {
            name: '大理白族自治州'
          },
          {
            name: '德宏傣族景颇族自治州'
          },
          {
            name: '怒江傈僳族自治州'
          },
          {
            name: '迪庆藏族自治州'
          }
        ]
      },
      {
        name: '西藏自治区',
        children: [
          {
            name: '拉萨市'
          },
          {
            name: '日喀则市'
          },
          {
            name: '昌都市'
          },
          {
            name: '林芝市'
          },
          {
            name: '山南市'
          },
          {
            name: '那曲市'
          },
          {
            name: '阿里地区'
          }
        ]
      },
      {
        name: '陕西省',
        children: [
          {
            name: '西安市'
          },
          {
            name: '铜川市'
          },
          {
            name: '宝鸡市'
          },
          {
            name: '咸阳市'
          },
          {
            name: '渭南市'
          },
          {
            name: '延安市'
          },
          {
            name: '汉中市'
          },
          {
            name: '榆林市'
          },
          {
            name: '安康市'
          },
          {
            name: '商洛市'
          }
        ]
      },
      {
        name: '甘肃省',
        children: [
          {
            name: '兰州市'
          },
          {
            name: '嘉峪关市'
          },
          {
            name: '金昌市'
          },
          {
            name: '白银市'
          },
          {
            name: '天水市'
          },
          {
            name: '武威市'
          },
          {
            name: '张掖市'
          },
          {
            name: '平凉市'
          },
          {
            name: '酒泉市'
          },
          {
            name: '庆阳市'
          },
          {
            name: '定西市'
          },
          {
            name: '陇南市'
          },
          {
            name: '临夏回族自治州'
          },
          {
            name: '甘南藏族自治州'
          }
        ]
      },
      {
        name: '青海省',
        children: [
          {
            name: '西宁市'
          },
          {
            name: '海东市'
          },
          {
            name: '海北藏族自治州'
          },
          {
            name: '黄南藏族自治州'
          },
          {
            name: '海南藏族自治州'
          },
          {
            name: '果洛藏族自治州'
          },
          {
            name: '玉树藏族自治州'
          },
          {
            name: '海西蒙古族藏族自治州'
          }
        ]
      },
      {
        name: '宁夏回族自治区',
        children: [
          {
            name: '银川市'
          },
          {
            name: '石嘴山市'
          },
          {
            name: '吴忠市'
          },
          {
            name: '固原市'
          },
          {
            name: '中卫市'
          }
        ]
      },

      {
        name: '新疆维吾尔自治区',
        children: [
          {
            name: '乌鲁木齐市'
          },
          {
            name: '克拉玛依市'
          },
          {
            name: '吐鲁番市'
          },
          {
            name: '哈密市'
          },
          {
            name: '昌吉回族自治州'
          },
          {
            name: '博尔塔拉蒙古自治州'
          },
          {
            name: '巴音郭楞蒙古自治州'
          },
          {
            name: '阿克苏地区'
          },
          {
            name: '克孜勒苏柯尔克孜自治州'
          },
          {
            name: '喀什地区'
          },
          {
            name: '和田地区'
          },
          {
            name: '伊犁哈萨克自治州'
          },
          {
            name: '塔城地区'
          },
          {
            name: '阿勒泰地区'
          },
          {
            name: '自治区直辖县级行政单位'
          }
        ]
      },
      {
        name: "台湾省",
        children: [
            {
              name: "台北市",
            },
            {
              name: "新北市",
            },
            {
              name: "桃园市",
            },
            {
              name: "台中市",
            },
            {
              name: "台南市",
            },
            {
              name: "高雄市",
            },
            {
              name: "基隆市",
            },
            {
              name: "新竹市",
            },
            {
              name: "嘉义市",
            },
            {
              name: "新竹县",
            },
            {
              name: "苗栗县",
            },
            {
              name: "彰化县",
            },
            {
              name: "南投县",
            },
            {
              name: "云林县",
            },
            {
              name: "嘉义县",
            },
            {
              name: "屏东县",
            },
            {
              name: "宜兰县",
            },
            {
              name: "花莲县",
            },
            {
              name: "台东县",
            },
            {
              name: "澎湖县",
            },
            {
              name: "连江县",
            }
        ]
      },
      {
        name: "香港特别行政区",
        children: [
          {
            name: "中西区"
          },
          {
            name: "东区"
          },
          {
            name: "南区"
          },
          {
            name: "湾仔区"
          },
          {
            name: "九龙城区"
          },
          {
            name: "深水埗区"
          },
          {
            name: "黄大仙区"
          },
          {
            name: "油尖旺区"
          },
          {
            name: "离岛区"
          },
          {
            name: "葵青区"
          },
          {
            name: "北区"
          },
          {
            name: "西贡区"
          },
          {
            name: "沙田区"
          },
          {
            name: "大埔区"
          },
          {
            name: "荃湾区"
          },
          {
            name: "屯门区"
          },
          {
            name: "元朗区"
          }
 
      
          ]
      },
      {
        name: "澳门特别行政区",
        children: [
          {
            name: "花地玛堂区"
          },
          {
            name: "圣安多尼堂区"
          },
          {
            name: "大堂区"
          },
          {
            name: "望德堂区"
          },
          {
            name: "风顺堂区"
          },
          {
            name: "氹仔"
          },
          {
            name: "路环岛"
          }

        ]
      }
    ],

以下是json格式的数据:

json格式的数据