个回答

• 李晓健

  2016-01-11 21:24:22

  已采纳

  var data = {
      "name": "中国",
      "province": [{
          "name": "黑龙江",
          "cities": {
              "city": ["哈尔滨", "大庆"]
          }
      }, {
          "name": "广东",
          "cities": {
              "city": ["广州", "深圳", "珠海"]
          }
      }, {
          "name": "台湾",
          "cities": {
              "city": ["台北", "高雄"]
          }
      }, {
          "name": "新疆",
          "cities": {
              "city": ["乌鲁木齐"]
          }
      }]
  };
  //方式一
  var provinces = data.province;
  for(var i= 0,len=provinces.length;i<len;i++){
      var citys = provinces[i].cities.city;
      console.log('-----------------'+provinces[i].name+'--------------')
      for(var j= 0,jlen=citys.length;j<jlen;j++){
          console.log(citys[j]);
      }
  }
  
  //方式2
  var citys2=[];
  for(var x= 0,xlen=data.province.length;x<xlen;x++){
      citys2 = citys2.concat(data.province[x].cities.city)
  }
  console.log(citys2);

  不知道你想要哪一个？

  1

• qq_慕慕947699

  2020-04-15 18:35:49

  console.log(data.province.reduce((a, b) => {

        return b.cities && b.cities.city && a.concat(b.cities.city)

      }, []))

  
  

  0