使用flag

调试运行
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>图形展示</title>
</head>
<body>
 
<div class="detail-section">
    <div id="canvas">
 
    </div>
</div>
 
<script src="http://g.tbcdn.cn/bui/acharts/1.0.32/acharts-min.js"></script>
<!-- https://g.alicdn.com/bui/acharts/1.0.29/acharts-min.js -->
 
 
<script type="text/javascript">
 
    var chart = new AChart({
        theme : AChart.Theme.SmoothBase,
        id : 'canvas', 
        width : 950,
        height : 500,
        plotCfg : {
            margin : [50,50,80] //画板的边距
        },
        xAxis : {
            categories : ['一月','二月','三月','四月','五月','六月','七月','八月','九月','十月','十一月','十二月']
        },
        tooltip : {
            valueSuffix : '°C'
        },
        seriesOptions: {
        },
        series : [{
            id: 's1',
            type: 'line',
            name: 'Tokyo',
            data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6]
        }, {
            type: 'line',
            name: 'Beijing',
            data: [13.9, 14.2, 15.7, 18.5, 21.9, 25.2, 27.0, 26.6, 24.2, 20.3, 16.6, 14.8]
        },{
            name: 'flag',
            data:[{
                x : '一月'
            },{
                x : '一月'
            },{
                x : '十一月'
            },{
                x : '十二月'
            }],
            type: 'flag',
            onSeries: 's1' //定义flag坐落的series,不存在则坐落在x轴上面
        }]
    });
 
    chart.render();
</script>
 
</body>
</html>