[GitHub] [incubator-echarts] ranlu823 opened issue #9064: 4.0版本在angular中多标题报错

[GitHub]

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### One-line summary [问题简述]





### Version & Environment [版本及环境]
+ ECharts version [4.1.0]:
+ Browser version [chrome: 70.0.3514.0（正式版本） （32 位）]:
+ OS Version [windows 10]:





### Expected behaviour [期望结果]





### ECharts option [ECharts配置项]
<!-- Copy and paste your 'echarts option' here. -->
<!-- [下方贴你的option，注意不要删掉下方 ```javascript 和 尾部的 ``` 字样。最好是我们能够直接运行的 
option。如何得到能运行的 option 参见上方的 guidelines for contributing] -->
```javascript
option = {
      title: [{
        gridIndex: 0,
        text: '在线构建',
        subtext: '总计 ',
        x: '25%',
        textAlign: 'center'
      },{
        gridIndex: 0,
        text: '在线构建',
        subtext: '总计 ',
        x: '50%',
        textAlign: 'center'
      }],
      tooltip: {},
      xAxis: [
        { type: 'category', gridIndex: 0, data: ['Mon', 'Tue', 'Wed', 'Thu', 
'Fri', 'Sat', 'Sun'] },
        { type: 'category', gridIndex: 1, data: ['Mon', 'Tue', 'Wed', 'Thu', 
'Fri', 'Sat', 'Sun'] }
      ],
      yAxis: [
        { gridIndex: 0 },
        { gridIndex: 1 }
      ],
      grid: [{
        top: 50,
        width: '100%',
        bottom: '45%',
        left: 10,
        containLabel: true
      }, {
        top: '55%',
        width: '100%',
        bottom: 0,
        left: 10,
        containLabel: true
      }],
      series: [
        {
          name: '直接访问',
          type: 'bar',
          xAxisIndex: 0,
          yAxisIndex: 0,
          data: [86.5, 92.1, 85.7, 83.1]

        },
        {
          name: '间接访问',
          type: 'bar',
          xAxisIndex: 1,
          yAxisIndex: 1,
          data: [86.5, 92.1, 85.7, 83.1]
        }
      ]
}

```




### Other comments [其他信息]
<!-- For example: Screenshot or Online demo -->
<!-- [例如，截图或线上实例 (JSFiddle/JSBin/Codepen)] -->



[ Full content available at: 
https://github.com/apache/incubator-echarts/issues/9064 ]
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