再看那柔弱的柳树吧,在寒冬余威尚盛时节,就早早苏醒过来,望着冰冻的河面,迎着凛冽的寒风,它微微察觉出一丝春意,于是,不顾一切地率先吐翠,淡淡地披起娇黄嫩绿的新装。沿河望去,枝梢间烟纱雾彀,一片生机,这情景仿佛一首动人的歌,一首热烈向往春天的歌,一首报告春的信息的歌,一首表达美好信念的歌。我在想:既然迎春花被人称作报春花,那么,柳树可不可以叫作报春树呢春来了,万千柳枝在春风中袅袅舞动。柳树是热爱春天的,春天也是热爱柳树的。
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。