Vue中使用sass实现换肤功能

@charset "utf-8";
$font_default_color:$font-color-shallow3;
$font_default_size:$font_medium_s;
*{
 margin:0;padding:0;box-sizing:border-box;color:$font_default_color;
 /*@include font-dpr($font_default_size);*/
}
a{text-decoration:none;color:$font_default_color;}
.sub-page { //routerView
 position: fixed;top: 0;bottom: 0;width: 100%;background:#fff;right: 0;left: 0;z-index: 5;
}
#content{width:100%;position:absolute;@include px2rem(top,88px);bottom:0;overflow-x:auto;}
.width{
 width:100%;
}
/*竖向居中*/
.table-cell{
 display:table-cell;vertical-align:middle;text-align:center;
}
.middle{
 vertical-align:middle;
}
/*弹性盒*/
.flex{
 display: inline-flex;display: -webkit-flex;display: flex;
}
/*弹性盒-子元素可竖向居中*/
.flex-middle{
 display :flex; display:-webkit-flex; align-items:center; -webkit-align-items:center; justify-content:center ;
}
.tl{
 text-align:left;
}
.tc{
 text-align:center;
}
.tr{
 text-align:right;
}
.fl{
 float:left;
}
.fr{
 float:right;
}
.clear::after{
 /*原理： overflow!=visible ;display!=block;float!=none;position!=static||relative 都可为元素创建BFC；消除边距重叠或者浮动产生的影响*/
 content:'';overflow:hidden;clear:both;
}

@charset "utf-8";
@import "./variable";/*引入配置*/
@mixin font_size($size){/*通过该函数设置字体大小，后期方便统一管理；*/
 @include font-dpr($size);
}
@mixin font_color($color){/*通过该函数设置字体颜色，后期方便统一管理；*/
 color:$color;
 [data-theme="theme1"] & {
 color:$font-color-theme1;
 }
 [data-theme="theme2"] & {
 color:$font-color-theme2;
 }
 [data-theme="theme3"] & {
 color:$font-color-theme3;
 }
}
@mixin bg_color($color){/*通过该函数设置主题颜色，后期方便统一管理；*/
 background-color:$color;
 [data-theme="theme1"] & {
 background-color:$background-color-theme1;
 }
 [data-theme="theme2"] & {
 background-color:$background-color-theme2;
 }
 [data-theme="theme3"] & {
 background-color:$background-color-theme3;
 }
}
/*px转rem*/
@mixin px2rem($property,$px,$px2:false,$px3:false,$px4:false){
 $rem:75px;/* 设计稿尺寸/10 */
 @if $px and $px2 and $px3 and $px4 {
 #{$property}: ($px / $rem) + rem ($px2 / $rem) + rem ($px3 / $rem) + rem ($px4 / $rem) + rem;
 }
 @else if $px and $px2 {
 #{$property}: ($px / $rem) + rem ($px2 / $rem) + rem;
 //[data-model='pad'] & {#{$property}: ($px * 1.4 / $rem) + rem ($px2 * 1.4 / $rem) + rem;}
 }
 @else{
 #{$property}: ($px / $rem) + rem!important;
 //[data-model='pad'] & {#{$property}: ($px * 1.4 / $rem) + rem;}
 }
}
/*根据dpr计算font-size*/
@mixin font-dpr($font-size){
 font-size: $font-size;
 //[data-model="pad"] & { font-size: $font-size * 1.4; }
 [data-dpr="2"] & { font-size: $font-size * 2;}
 [data-dpr="3"] & { font-size: $font-size * 3;}
}
/*弹性盒属性*/
%flexbox{
 display: inline-flex;display: -webkit-flex;display: flex;
}
/*弹性盒比例*/
@mixin flex($num:1){
 -webkit-box-flex:$num;-moz-box-flex:$num;-webkit-flex:$num;-ms-flex:$num;flex:$num;
}
/*超行溢出显示省略号*/
@mixin overflow($num:1,$fontSize:0,$lineHeight:1.5){
 display: -webkit-box;-webkit-line-clamp:$num; overflow: hidden;
 /*! autoprefixer: off */
 -webkit-box-orient: vertical;
 /* autoprefixer: on */
 @if $fontSize!=0 and $lineHeight{/*高度需要撑开*/
 line-height:$lineHeight;
 @if $lineHeight < 1.2 {
  line-height:1.2; /*最小需要1.2，否则在部分安卓机下第$num+1行会顶部漏出*/
 }
 height: $num * $fontSize * $lineHeight;
 [data-dpr="2"] & { height: $num * $fontSize * $lineHeight * 2!important;}
 [data-dpr="3"] & { height: $num * $fontSize * $lineHeight * 3!important;}
 }
}
//transition兼容写法
@mixin transition($content:all .2s){
 -moz-transition: $content;
 -webkit-transition: $content;
 -o-transition: $content;
 transition: $content;
}
//transfrom兼容
@mixin translateX($num:-50%){
 -ms-transform: translateX($num);
 -moz-transform: translateX($num);
 -webkit-transform: translateX($num);
 -o-transform: translateX($num);
 transform: translateX($num);
}
@mixin translateY($num:-50%){
 -ms-transform: translateY($num);
 -moz-transform: translateY($num);
 -webkit-transform: translateY($num);
 -o-transform: translateY($num);
 transform: translateY($num);
}
@mixin rotate($deg:90deg){
 -ms-transform:rotate($deg);
 -moz-transform:rotate($deg);
 -webkit-transform:rotate($deg);
 -o-transform:rotate($deg);
 transform:rotate($deg);
}

//颜色定义规范
$background-color-theme: #3f8e4d;//背景主题颜色默认
$background-color-theme1: red;//背景主题颜色1
$background-color-theme2: #652BF5;//背景主题颜色2
$background-color-theme3: deepskyblue;//背景主题颜色3
$background-color-themesec: #edc148;//背景次要主题颜色
$font-color-theme : #3f8e4d;//字体主题颜色默认
$font-color-theme1 : red;//字体主题颜色1
$font-color-theme2 : #652BF5;//字体主题颜色2
$font-color-theme3 : deepskyblue;//字体主题颜色3
$font-color-themesec : #edc148;//字体次要主题颜色
$font-color-shallow0 : #000;
$font-color-shallow1 : #111;
$font-color-shallow2 : #222;
$font-color-shallow3 : #333;
$font-color-shallow4 : #444;
$font-color-shallow5 : #555;
$font-color-shallow6 : #666;
$font-color-shallow7 : #777;
$font-color-shallow8 : #888;
$font-color-shallow9 : #999;
$font-color-shallowdb : #dbdbdb;
//字体定义规范
$font_little_s:10px;
$font_little:12px;
$font_medium_s:14px;
$font_medium:16px;
$font_large_s:18px;
$font_large:20px;

<template>
 <div id="bookcaselist">
 <v-head :title="title" :showBack="showBack"></v-head>
 <div id="content">
  <p @click="changeTheme('theme1')"></p>
  <p @click="changeTheme('theme2')"></p>
  <p @click="changeTheme('theme3')"></p>
 </div>
 <v-foot :activeIndex="3"></v-foot>
 </div>
</template>
<script>
export default {
 name: 'mine',
 data () {
 return {
  title: '我的',
  showBack: false
 }
 },
 methods: {
 changeTheme (theme) {
  window.document.documentElement.setAttribute('data-theme', theme)
 }
 },
 components: {
 }
}
</script>
<style scoped="" lang="scss">
 p{
 @include px2rem(width,100px);
 @include px2rem(height,100px);
 @include px2rem(margin,20px);
 float:left;
 }
 p:first-child{
 background-color:red;
 }
 p:nth-child(2){
 background-color:#652BF5;
 }
 p:last-child{
 background-color:deepskyblue;
 }
</style>