使用ReactDOM.render()重复渲染 function tick() { const element = ( <div> <h1>Hello, world!</h1> <h2>It is {new Date().toLocaleTimeString()}.</h2> </div> ); R ...
react 更新最新状态值 In both hooks and class components, we have several ways to construct and alter the component’s state. We change the state by calling setState or using useState. These changes cause par
