如何添加链接到谷歌GeoChart地图？

<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>

google.charts.load('current', {
  'packages': ['geochart'],
  'mapsApiKey': 'YOUR_API_KEY' // 替换为你的Google Maps API密钥
});

google.charts.setOnLoadCallback(drawChart);

function drawChart() {
  var data = new google.visualization.DataTable();
  data.addColumn('string', 'Country');
  data.addColumn('number', 'Value');
  data.addColumn({type: 'string', role: 'tooltip', 'p': {'html': true}}); // 添加tooltip列

  // 添加地图数据
  data.addRows([
    ['US', 300, '<a href="https://example.com">United States</a>'],
    ['CA', 200, '<a href="https://example.com">Canada</a>'],
    // 添加更多地图数据...
  ]);

  var options = {
    // 设置地图样式和配置选项
  };

  var chart = new google.visualization.GeoChart(document.getElementById('chart_div'));
  chart.draw(data, options);
}

<div id="chart_div"></div>