上海地图echarts 地图配置项内容和展示

为什么不显示

      option = {
			        title: {
			            text: '上海地图'
			        },
			        tooltip: {
			            trigger: 'item'
			        },
			        legend: {
			            orient: 'vertical',
			            x: 'right',
			            data: ['数据名称']
			        },
			        dataRange: {
			            min: 0,
			            max: 1000,
			            color: ['orange', 'yellow'],
			            text: ['高', '低'], // 文本，默认为数值文本
			            calculable: true
			        },
			        series: [{
			            name: '数据名称',
			            type: 'map',
			            map: '上海',
			            selectedMode: 'single',
			            itemStyle: {
			                normal: {
			                    label: {
			                        show: true
			                    }
			                },
			                emphasis: {
			                    label: {
			                        show: true
			                    }
			                }
			            },
			            data: [
			        {name: '崇明县',value: Math.round(Math.random()*1000)},
                    {name: '宝山区',value: Math.round(Math.random()*1000)},
                    {name: '嘉定区',value: Math.round(Math.random()*1000)},
                    {name: '青浦区',value: Math.round(Math.random()*1000)},
                    {name: '杨浦区',value: Math.round(Math.random()*1000)},
                    {name: '虹口区',value: Math.round(Math.random()*1000)},
                    {name: '闸北区',value: Math.round(Math.random()*1000)},
                    {name: '普陀区',value: Math.round(Math.random()*1000)},
                    {name: '静安区',value: Math.round(Math.random()*1000)},
                    {name: '黄浦区',value: Math.round(Math.random()*1000)},
                    {name: '卢湾区',value: Math.round(Math.random()*1000)},
                    {name: '长宁区',value: Math.round(Math.random()*1000)},
                    {name: '徐汇区',value: Math.round(Math.random()*1000)},
                    {name: '浦东新区',value: Math.round(Math.random()*1000)},
                    {name: '松江区',value: Math.round(Math.random()*1000)},
                    {name: '闵行区',value: Math.round(Math.random()*1000)},
                    {name: '金山区',value: Math.round(Math.random()*1000)},
                    {name: '奉贤区',value: Math.round(Math.random()*1000)},
                    {name: '南汇区',value: Math.round(Math.random()*1000)}]
			        }
			        ]
			    }