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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ### 1. 使用ref實現(createRef)--針對第是class組件 ~~~ class MyComponent extends React.Component { constructor(props) { super(props); this.myRef = React.createRef(); } render() { return <div ref={this.myRef} />; } } ~~~ ### 2. 使用useRef() --針對第是function組件才能使用hooks ~~~ // 此時第useRef使用導入直接使用 或使用React.useRef()均可 let inputEl =useRef(null); <input ref={inputEl}/> ~~~
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