echarts 设置主标题title

最终效果

js代码

   option() {
  const title = this.chartData.source
        ? `{title| ${this.chartData.title}}{source| ${this.chartData.source} }`
        : `{title| ${this.chartData.title}}`
        return{
        title: {
          text: title,
          top: 18,
          left: 13,
          textStyle: {
            rich: {
              title: {
                color: '#2D2E32',
                fontFamily: 'MicrosoftYaHei',
                fontSize: 14,
                fontWeight: 400,
                lineHeight: 16,
                cursor: 'pointer',
                padding: [0, 15, 0, 0]
              },
              source: {
                fontSize: 12,
                fontFamily: 'MicrosoftYaHei',
                color: '#9A9CA1',
                padding: [6, 9, 7, 9],
                backgroundColor: 'rgba(235, 236, 239, 0.4)',
                borderRadius: 6
              }
            },
            lineHeight: 16
          }
        }
        }