将hAxis设置为最新格式-谷歌图表

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

google.charts.load('current', {packages: ['corechart']});
google.charts.setOnLoadCallback(drawChart);

function drawChart() {
  var data = google.visualization.arrayToDataTable([
    ['Year', 'Sales', 'Expenses'],
    ['2016', 1000, 400],
    ['2017', 1170, 460],
    ['2018', 660, 1120],
    ['2019', 1030, 540]
  ]);

  var options = {
    hAxis: {
      format: 'yyyy',
      gridlines: {count: 5}
    },
    vAxis: {
      title: 'Amount'
    }
  };

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

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