使用useState
钩子和onClick
事件,如这example.
import React, { useState } from "react";
function App() {
const [active, setActive] = useState(false)
return (
<div className="App">
<label>URL : </label>
<input
placeholder='http://localhost:3000/123456'
disabled={!active}
/>
<button
type='submit'
onClick={() => setActive(!active)}
>
Active
</button>
</div>
);
}