tabs 加角标

  <Tabs
          className={styles.tabs}
          activeKey={`${activeTab}`}
          onChange={tab => {
            this.setState({ activeTab: tab });
          }}
        >
          {tabsData.map((o, index) => (
            <Tabs.TabPane 
              key={`${index}`} 
              tab={
                <span>
                  {o.name}
                  <Badge 
                    count={23499}
                    overflowCount={9999}
                    style={{ backgroundColor: '#52c41a',display:'relative', top:'-2px',marginLeft:'5px'}} 
                  />
                </span>
              }
            >
              <TabContent onRef={this.onRef} activeTab={activeTab} testValues={testValues} />
            </Tabs.TabPane>
              ))}
        </Tabs>