代码:
let appState = observable({ time: 11, do:function(){ appState.time=12 } });const App = observer(class app extends React.Component { componentDidUpdate(){ console.log('1') } render(){ return (<h2 onClick={appState.do}>Home{appState.time}</h2>; } }) ReactDOM.render( <App/>, document.body );
实际上并没有使用action修饰可以更新到数据,使用action修饰:
let appState = observable({ time: 11, do: action(function () { appState.time = 12; }) })
action才相当于setState,为什么没有启用action仍然更新
慕桂英546537
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