项目地址

demo

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<!DOCTYPE html>
<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  
  <meta http-equiv="X-UA-Compatible" content="IE=EDGE">
  <title>二级下钻</title>
  <style>
    * {
      margin:0;
      padding:0;
    }
    html,body,#china-map {
      width: 100%;
      height:100%;
    }
    #box{
        display:none;
        background-color: goldenrod;
        width: 180px;
        height: 30px;
    }
    #box-title{
        display:block;
    }
    #back {
      position: absolute;
      left:0;
      top:0;
      z-index: 9;
    }
  </style>
  <script src="./js/jquery-1.11.3.min.js"></script>
  <script type="text/javascript" src="./js/echarts.min.js"></script>
  <script type="text/javascript" src="./js/china.js"></script>
</head>

<body>
  <button id="back">返回全国</button>
  <div id="china-map">
  </div>

  <script>
    var myChart = echarts.init(document.getElementById('china-map'));
    var oBack = document.getElementById("back");

    var provinces = ['shanghai', 'hebei', 'shanxi', 'neimenggu', 'liaoning', 'jilin', 'heilongjiang', 'jiangsu', 'zhejiang', 'anhui', 'fujian', 'jiangxi', 'shandong', 'henan', 'hubei', 'hunan', 'guangdong', 'guangxi', 'hainan', 'sichuan', 'guizhou', 'yunnan', 'xizang', 'shanxi1', 'gansu', 'qinghai', 'ningxia', 'xinjiang', 'beijing', 'tianjin', 'chongqing', 'xianggang', 'aomen'];

    var provincesText = ['上海', '河北', '山西', '内蒙古', '辽宁', '吉林', '黑龙江', '江苏', '浙江', '安徽', '福建', '江西', '山东', '河南', '湖北', '湖南', '广东', '广西', '海南', '四川', '贵州', '云南', '西藏', '陕西', '甘肃', '青海', '宁夏', '新疆', '北京', '天津', '重庆', '香港', '澳门'];

    var seriesData = [{
      name: '北京',
      value: 100
    }, {
      name: '天津',
      value: 0
    }, {
      name: '上海',
      value: 60
    }, {
      name: '重庆',
      value: 0
    }, {
      name: '河北',
      value: 60
    }, {
      name: '河南',
      value: 60
    }, {
      name: '云南',
      value: 0
    }, {
      name: '辽宁',
      value: 0
    }, {
      name: '黑龙江',
      value: 0
    }, {
      name: '湖南',
      value: 60
    }, {
      name: '安徽',
      value: 0
    }, {
      name: '山东',
      value: 60
    }, {
      name: '新疆',
      value: 0
    }, {
      name: '江苏',
      value: 0
    }, {
      name: '浙江',
      value: 0
    }, {
      name: '江西',
      value: 0
    }, {
      name: '湖北',
      value: 60
    }, {
      name: '广西',
      value: 60
    }, {
      name: '甘肃',
      value: 0
    }, {
      name: '山西',
      value: 60
    }, {
      name: '内蒙古',
      value: 0
    }, {
      name: '陕西',
      value: 0
    }, {
      name: '吉林',
      value: 0
    }, {
      name: '福建',
      value: 0
    }, {
      name: '贵州',
      value: 0
    }, {
      name: '广东',
      value: 597
    }, {
      name: '青海',
      value: 0
    }, {
      name: '西藏',
      value: 0
    }, {
      name: '四川',
      value: 60
    }, {
      name: '宁夏',
      value: 0
    }, {
      name: '海南',
      value: 60
    }, {
      name: '台湾',
      value: 0
    }, {
      name: '香港',
      value: 0
    }, {
      name: '澳门',
      value: 0
    }];

    oBack.onclick = function () {
      initEcharts("china", "中国");
    };
    initEcharts("china", "中国");

    // 初始化echarts
    function initEcharts(pName, Chinese_) {
      var tmpSeriesData = pName === "china" ? seriesData : [];

      var option = {
        title: {
          text: Chinese_ || pName,
          left: 'center'
        },
        tooltip: {
            trigger: 'item',
            formatter: '{b}<br/>{c} (p / km2)'
        },
        series: [
          {
            name: Chinese_ || pName,
            type: 'map',
            mapType: pName,
            roam: false,//是否开启鼠标缩放和平移漫游
            data: tmpSeriesData,
            top: "10%",//组件距离容器的距离
              zoom:1.1,
              selectedMode : 'single',

              label: {
                  normal: {
                      show: false,//显示省份标签
                      textStyle:{color:"#fbfdfe"}//省份标签字体颜色
                  },
                  emphasis: {//对应的鼠标悬浮效果
                      show: false,
                      textStyle:{color:"#323232"}
                  }
              },
              itemStyle: {
                  normal: {
                      borderWidth: 0.2,//区域边框宽度
                      borderColor: '#ccc',//区域边框颜色
                      areaColor:"#4ea397",//区域颜色

                  },
                  emphasis: {
                      borderWidth: .5,
                      borderColor: '#4b0082',
                      areaColor:"#ece39e",
                  }
              },
          }
        ]

      };

      myChart.setOption(option);
      myChart.off("click");

      if (pName === "china") { // 全国时，添加click 进入省级
        myChart.on('click', function (param) {
          console.log(param.name);
          // 遍历取到provincesText 中的下标  去拿到对应的省js
          for (var i = 0; i < provincesText.length; i++) {
            if (param.name === provincesText[i]) {
              //显示对应省份的方法
              showProvince(provinces[i], provincesText[i]);
              break;
            }
          }
          if (param.componentType === 'series') {
              var provinceName =param.name;
              $('#box').css('display','block');
              $("#box-title").html(provinceName);

          }
        });
      } else { // 省份，添加双击 回退到全国
        myChart.on("dblclick", function () {
          initEcharts("china", "中国");
        });
      }
    }

  </script>

  <script>
    // 展示对应的省
    function showProvince(pName, Chinese_) {
      //这写省份的js都是通过在线构建工具生成的，保存在本地，需要时加载使用即可，最好不要一开始全部直接引入。
      loadBdScript('$' + pName + 'JS', './js/map/province/' + pName + '.js', function () {
        initEcharts(Chinese_);
      });
    }
    // 加载对应的JS
    function loadBdScript(scriptId, url, callback) {
      var script = document.createElement("script");
      script.type = "text/javascript";
      if (script.readyState) {  //IE
        script.onreadystatechange = function () {
          if (script.readyState === "loaded" || script.readyState === "complete") {
            script.onreadystatechange = null;
            callback();
          }
        };
      } else {  // Others
        script.onload = function () {
          callback();
        };
      }
      script.src = url;
      script.id = scriptId;
      document.getElementsByTagName("head")[0].appendChild(script);
    };
  </script>
</body>
</html>