antV G2plot清除图注removeAnnotation

annotations:[
        {
          id: 'nameId',
          type: 'text',
          position: ['50%', '50%'],
          content: '标题',
          style: {
            textAlign: 'center',
            textBaseline: 'bottom',
            fontSize: 26,
            fontWeight: 600,
            fill:  '#595959',
          },
        },
        {
          id: 'contentId',
          type: 'text',
          position: ['50%', '50%'],
          offsetY: 4,
          content: '内容',
          style: {
            textAlign: 'center',
            textBaseline: 'top',
            fontSize: 16,
            fontWeight: 600,
            fill: '#595959',
          },
        },
      ]

state.myPlot.removeAnnotations([{ id: 'nameId' }, { id: 'contentId' }]);

注意给textAnnotation设置id属性~