帶資料標籤的柱狀圖

下面是一個帶資料標籤的柱狀圖示例。我們已在 Google Charts 配置語法章節中看到用於繪製此圖表所用的配置。因此，讓我們來看完整的示例。

配置

我們已使用 role 作為 annotation 配置以在柱狀圖中顯示資料標籤。

var data = google.visualization.arrayToDataTable([
   ['Year', 'Asia', { role: 'annotation'} ,'Europe', { role: 'annotation'}],
   ['2012',  900,'900',      390, '390']
]);

示例

googlecharts_column_labels.htm

即時演示

<html>
   <head>
      <title>Google Charts Tutorial</title>
      <script type = "text/javascript" src = "https://www.gstatic.com/charts/loader.js">
      </script>
      <script type = "text/javascript">
         google.charts.load('current', {packages: ['corechart']});     
      </script>
   </head>
   
   <body>
      <div id = "container" style = "width: 550px; height: 400px; margin: 0 auto">
      </div>
      <script language = "JavaScript">
         function drawChart() {
            // Define the chart to be drawn.
            var data = google.visualization.arrayToDataTable([
               ['Year', 'Asia', { role: 'annotation'} ,'Europe', { role: 'annotation'}],
               ['2012',  900,'900',      390, '390'],
               ['2013',  1000,'1000',      400,'400'],
               ['2014',  1170,'1170',      440,'440'],
               ['2015',  1250,'1250',       480,'480'],
               ['2016',  1530,'1530',      540,'540']
            ]);

            var options = {title: 'Population (in millions)'};  

            // Instantiate and draw the chart.
            var chart = new google.visualization.ColumnChart(document.getElementById('container'));
            chart.draw(data, options);
         }
         google.charts.setOnLoadCallback(drawChart);
      </script>
   </body>
</html>

結果

驗證結果。

googlecharts_column_charts.htm

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