option = {

    tooltip : {

        trigger: 'item',

        formatter: '{b}'

    },

    series : [

        {

            name: '中国',

            type: 'map',

            mapType: 'china',

            selectedMode : 'multiple',

            itemStyle:{

                normal:{label:{show:true}},

                emphasis:{label:{show:true}}

            },

            data:[

                {name:'广东',selected:true}

            ]

        }

    ]

};

var ecConfig = require('echarts/config');

myChart.on(ecConfig.EVENT.MAP_SELECTED, function (param){

    var selected = param.selected;

    var str = '当前选择： ';

    for (var p in selected) {

        if (selected[p]) {

            str += p + ' ';

        }

    }

    document.getElementById('wrong-message').innerHTML = str;

})