<!DOCTYPE html>
<html>
<head><meta charset="utf-8"><title>中國牛只分布可視化</title><script src="https://cdn.jsdelivr.net/npm/echarts@5.4.3/dist/echarts.min.js"></script><script src="https://cdn.jsdelivr.net/npm/jquery@3.6.0/dist/jquery.min.js"></script>
</head>
<body><div id="map" style="width: 100%;height:600px;"></div><script>// 異步加載地圖數據$.get('https://geo.datav.aliyun.com/areas_v3/bound/100000_full.json', function(chinaJson) {var chart = echarts.init(document.getElementById('map'));echarts.registerMap('china', chinaJson);// 牛只分布數據var cattleData = [{name: '內蒙古', value: [111.76, 40.82, 280]},{name: '新疆', value: [87.62, 43.82, 190]},{name: '黑龍江', value: [126.53, 45.80, 150]},{name: '四川', value: [104.06, 30.67, 120]},{name: '云南', value: [102.73, 25.04, 90]}];var option = {title: {text: '中國主要牧區牛只分布',subtext: '數據更新時間：2025-06-29',left: 'center'},tooltip: {trigger: 'item',formatter: function(params) {if(params.seriesType === 'scatter') {return params.name + '<br/>存欄量: ' + params.value[2] + '萬頭';}return params.name;}},visualMap: {min: 0,max: 300,text: ['高', '低'],realtime: false,calculable: true,inRange: {color: ['#1e90ff', '#ff4500']}},geo: {map: 'china',roam: true,label: {show: true,color: '#333',fontSize: 10},emphasis: {label: {color: '#fff'},itemStyle: {areaColor: '#389af4'}},itemStyle: {areaColor: '#e6f7ff',borderColor: '#aaa'}},series: [{name: '牛只數量',type: 'scatter',coordinateSystem: 'geo',symbolSize: function(val) {return Math.sqrt(val[2]) * 3;},data: cattleData,encode: {value: 2},label: {formatter: '{b}',position: 'right',show: true},itemStyle: {color: '#d63031'}}]};chart.setOption(option);window.addEventListener('resize', chart.resize);});</script>
</body>
</html>
![[C語言]數據類型關鍵字詳解](http://pic.xiahunao.cn/[C語言]數據類型關鍵字詳解)
