<aside> 💡 图标右上角的圆形徽标数字。

</aside>

<Popover
                        overlayStyle={{ width: 336 }}
                        align={{ offset: [14, 0] }}
                        placement="bottomRight"
                        overlayClassName={styles.downloadPopover}
                        content={<ExportList popoverShow={exportPopoverShow} downloadCallback={this.queryDownLoadNum} />}
                        trigger="click"
                        visible={exportPopoverShow}
                        onVisibleChange={this.changeExportPopoverShow}
                        getPopupContainer={triggerNode => triggerNode.parentNode}
                      >
                        <Badge count={downloadNum} offset={[2, -5]}>
                          <Icon type="cloud-download" style={{ cursor: 'pointer' }} />
                        </Badge>
                      </Popover>