1.安裝

yarn add styled-components

2.創(chuàng)建style.js

import {createGlobalStyle} from 'styled-components'
// 導(dǎo)出的變量要大寫開頭
export const CreateStyle = createGlobalStyle`
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
    display: block;
}
body {
    line-height: 1;
}
ol, ul {
    list-style: none;
}
blockquote, q {
    quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
    content: '';
    content: none;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}
Previous Version
`

3.在主組件里使用

import React, { Component } from 'react';
import {CreateStyle} from './style'
class Test extends Component {
    constructor(props) {
        super(props);
        this.state = {  }
    }
    render() { 
        return ( 
            <div>
                <CreateStyle></CreateStyle>
            </div>
         );
    }
}
 
export default Test;

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