star文件夹下建立Star.vue，及相关的图片信息。便于组件的就近维护

Star.vue：

<template> <div class="star" :class="starSize"> <span v-for="(itemClass,key) in itemClasses" :class="itemClass" class="star-item"></span> </div></template><script> const LENGTH = 5; const CLS_ON = 'on'; const CLS_HALF = 'half'; const CLS_OFF = 'off'; export default{ props:{ size:{ //尺寸，24,36,48 type: Number }, score:{ type: Number } }, computed:{ starSize(){ return 'star-'+ this.size; }, itemClasses(){ let result = []; let score = Math.floor(this.score*2)/2; //将数值调整为整数及.5的形式，例：4.3 => 4；4.6 => 4.5 let hasDecimal = score %1 !==0; let integer = Math.floor(score); for(let i =0;i<integer;i++){ result.push(CLS_ON); } if(hasDecimal){ result.push(CLS_HALF); } while(result.length<LENGTH){ result.push(CLS_OFF); } return result; } } }</script><style lang="stylus" rel="stylesheet/stylus">@import "../../common/stylus/mixin.styl";.star font-size: 0 .star-item display: inline-block background-repeat: no-repeat &.star-48 .star-item width: 20px height: 20px margin-right: 22px background-size: 20px 20px &.last-child margin-right: 0 &.on bg-image('star48_on') &.half bg-image('star48_half') &.off bg-image('star48_off') &.star-36 .star-item width: 15px height: 15px margin-right: 6px background-size: 15px 15px &.last-child margin-right: 0 &.on bg-image('star36_on') &.half bg-image('star36_half') &.off bg-image('star36_off') &.star-24 .star-item width: 10px height: 10px margin-right: 3px background-size: 10px 10px &.last-child margin-right: 0 &.on bg-image('star24_on') &.half bg-image('star24_half') &.off bg-image('star24_off')</style>

Header.vue：

<star :size="48" :score="3.5"></star><script>import star from '../star/Star.vue'export default{ components:{ star }}</script>

mixin.styl：

bg-image($url) background-image: url($url + '@2x.png') @media (-webkit-min-device-pixel-ratio: 3),(min-device-pixel-ratio:3) background-image: url($url + '@3x.png')

以上这篇vue-star评星组件开发实例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。