uniapp ui库 px 转 rpx

项目最层新建pxToRpx.js 

yarn add postcss --save-dev

pxToRpx.js的代码
 
const postcss = require('postcss');
 
module.exports = postcss.plugin('postcss-px2rpx', function(opts) {
	opts = opts || {};
	var timesBigger = opts.times || 2;
	return function(root) {
		root.walkDecls(decl => {
			const val = decl.value;
			if (val.indexOf('px') > -1) {
				decl.value = val.replace(/(\d+)px/g, function(match, num) {
					return num * timesBigger + 'rpx';
				});
			}
		});
	};
});

配置vue.config.js

 
module.exports = {
	css: {
		loaderOptions: {
			postcss: {
				plugins: [
					require("./pxToRpx.js")({
						times: 2,//转换倍数
					})
				]
			}
		}
	}
}