可以通过设置drawOrder参数来解决这个问题。将drawOrder设置为 "line-marker" 或 "marker-line" 即可让线条标记显示在条形图的前面。

以下是示例代码：

anychart.onDocumentReady(function() {
  var data = {
    header: ["Month", "Revenue", "Expenses"],
    rows: [
      ["January", 10000, 8000],
      ["February", 12000, 10000],
      ["March", 18000, 12000],
      ["April", 15000, 13000],
      ["May", 20000, 14000],
      ["June", 22000, 16000],
      ["July", 28000, 18000],
      ["August", 26000, 20000],
      ["September", 30000, 22000],
      ["October", 32000, 23000],
      ["November", 35000, 25000],
      ["December", 38000, 27000]
    ]
  };

  var chart = anychart.column();

  chart.data(data);

  chart.lineMarker()
      .value(25000)
      .stroke("#999")
      .axis(chart.yAxis())
      .drawOrder("line-marker"); //设置 drawOrder 参数

  chart.container("container");
  chart.draw();
});