react标签动态控制显示样式和class

 

                        <div style={{ display: 'block' }}></div>
                        <div style={{ display: true?'block':'none' }}></div>
                        <div style={{ display: true?'block':'none', color: aaaaa, background: 'red' }}></div>

 

                        <div className="example1 example2"></div>
                        <div className={true?'example1':''}></div>
                        <div className={`${true?'example1':''} ${true?'example2':''} example3`}></div>