React开发（235）:react可以这样返回dom

bottomBtns

    const bottomBtns = (
      <div style={{ display: 'flex', justifyContent: 'flex-end', 
marginTop: 16 }}>
        <Button onClick={this.handleBack}>返回</Button>
        <Button style={{ marginLeft: '16px' }} onClick={() => 
this.save('save')}>
          保存
        </Button>
        <Button
          style={{ marginLeft: '16px' }}
          type="primary"
          onClick={() => this.save('addLecturerWithWorkFlow')}
        >
          提交
        </Button>
      </div>
    );