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react笔记之学习之内联样式和样式表


前言

react笔记之学习之内联样式和样式表_javascript

app.js

import React, {useState} from 'react';
import './App.css';

const App = () => {

const [redBorder, setRedBorder] = useState(true);

// const pStyle = {
// color: 'red',
// backgroundColor: '#bfa',
// border: redBorder ? "red solid 1px" : "blue solid 1px"
// };

const clickHandler = () => {
setRedBorder(false);
};

return (
<div>
<p className={`p1 ${redBorder?'':'blueBorder'}`}>我是一个段落</p>
<button onClick={clickHandler}>点我一下</button>
</div>
);
};

export default App;

app.css

.p1{
color: red;
background-color: #bfa;
border: 1px red solid;
}

.blueBorder{
border: 1px blue solid;
}


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