highcharts X轴问题

Question

highcharts X轴刻度

Answer 1

        xAxis: [{
            //tickPlacement: 'on',
            startOnTick: true,
            endOntick: true,
            lineColor: "#000000",
            title: 
            { text: '時刻',
              style: {
                  color: '#000000'
              } 
            },
            type: 'datetime',
           // tickInterval: 60 * 60 * 1000,
             tickPixelInterval: 50,
             labels: {
                y:20,
                style: {
                    fontSize: '12px',
                    color: '#000000'
                },
               // min:0,
                rotation: -45, 
                tickLength: 10,
                formatter: function() {
                    return Highcharts.dateFormat('%H:%M', this.value);
                }
                
            }
        },
        {   
            //tickPlacement: 'on',
            startOnTick: true,
            endOnTick: true,
            lineColor: "#000000",
            title: 
            { text: '時刻',
              style: {
                  color: '#000000'
              } 
            },
            type: 'datetime',
           // tickInterval: 60 * 60 * 1000,
            tickPixelInterval: 50,
             labels: {
                y:20,
                style: {
                    fontSize: '12px',
                    color: '#000000'
                },
                //min:0,
                rotation: -45, 
                tickLength: 10,
                formatter: function() {
                    return Highcharts.dateFormat('%H:%M', this.value);
                }
                
            }
        }],这是设置的两个x轴，改来改去怎么都不行