echart为什么折线图中间有一条横线啊

Question

基本代码

```javascript

 xAxis: {
                        type: 'time',
                        boundaryGap: true,
      
                    },
                    yAxis: {
                        name: '数据',
                        nameTextStyle: {
                            color: '#1B2232',
                            fontSize: 15
                        },
                        type: 'value',
                        boundaryGap: [0, '100%'],
                        splitLine: {
                            show: false
                        },
                        axisLine: {
                            lineStyle: {
                                color: '#1B2232'
                            }
                        },
                        axisLabel: {
                            color: '#1B2232'
                        }
                    },
                    series: [{
                        name: "入水口温度",
                        type: "line",
                        showSymbol: false,
                        hoverAnimation: false,
                        data: arr1,
                    }]

```

Answer 1

数据问题