Vue3评分（Rate）
可自定义设置以下属性：
-
是否允许再次点击后清除（allowClear），类型：boolean，默认 true
-
是否允许半选（allowHalf），类型：boolean，默认 false
-
star 总数，类型：number，默认 5
-
自定义字符，预置 'star' 'heart' 两种svg图标（character），类型：string | slot ，默认 ''
-
字符时是字体高度，图标时是图片大小（size），类型：number，单位px，默认 20
-
字符间距（gap），类型：number，单位px，默认 8
-
只读，无法进行交互（disabled），类型：boolean，默认 false
-
前数，受控值 1,2,3...（v-model:value），类型：number，默认 0
效果如下图：
①创建评分组件Rate.vue：
<script setup lang="ts">
import { ref, watch } from 'vue'
interface Props {allowClear?: boolean // 是否允许再次点击后清除allowHalf?: boolean // 是否允许半选count?: number // star 总数character?: string // 自定义字符，string | slot 预置 'star' 'heart' 两种svg图标size?: number // 字符时是字体高度，图标时是图片大小gap?: number // 字符间距disabled?: boolean // 只读，无法进行交互value?: number // v-model 当前数，受控值 1,2,3...
}
const props = withDefaults(defineProps<Props>(), {allowClear: true,allowHalf: false,count: 5,character: '',size: 20,gap: 8,disabled: false,value: 0
})
const activeValue = ref(props.value)
const tempValue = ref() // 清除时保存点击value
watch(() => props.value,(to) => {activeValue.value = to}
)
const emits = defineEmits(['update:value', 'change', 'hoverChange'])
function onClick (value: number) {tempValue.value = nullif (value !== props.value) {emits('change', value) // 选择时的回调emits('update:value', value)} else {if (props.allowClear) {tempValue.value = valueemits('change', 0)emits('update:value', 0)} else { // 不允许清除emits('change', value) // 选择时的回调}}
}
function onFirstEnter (value: number) {activeValue.value = valueemits('hoverChange', value) // 鼠标经过时数值变化的回调
}
function onSecondEnter (value: number) {activeValue.value = valueemits('hoverChange', value)
}
function resetTempValue () { // 重置点击valuetempValue.value = null
}
function onLeave () {activeValue.value = props.value
}
function preventDefault (e: Event) {e.preventDefault()
}
</script>
<template><div class="m-rate" :class="{'disabled': disabled}" @mouseleave="onLeave"><divclass="m-star":style="`margin-right: ${n !== count ? gap:0}px;`":class="{'u-star-half': allowHalf && activeValue >= n - 0.5 && activeValue < n, 'u-star-full': activeValue >= n, 'temp-gray': !allowHalf && tempValue === n}"@click="!allowHalf ? onClick(n):preventDefault($event)"v-for="n in count" :key="n"><divv-if="allowHalf"class="u-star-first":class="{'temp-gray-first': tempValue === n - 0.5}"@click.stop="onClick(n - 0.5)"@mouseenter="onFirstEnter(n - 0.5)"@mouseleave="resetTempValue"><svg v-if="character === 'star'" class="u-star" :style="`width: ${size}px;`" focusable="false" data-icon="star" aria-hidden="true" viewBox="64 64 896 896"><path d="M908.1 353.1l-253.9-36.9L540.7 86.1c-3.1-6.3-8.2-11.4-14.5-14.5-15.8-7.8-35-1.3-42.9 14.5L369.8 316.2l-253.9 36.9c-7 1-13.4 4.3-18.3 9.3a32.05 32.05 0 00.6 45.3l183.7 179.1-43.4 252.9a31.95 31.95 0 0046.4 33.7L512 754l227.1 119.4c6.2 3.3 13.4 4.4 20.3 3.2 17.4-3 29.1-19.5 26.1-36.9l-43.4-252.9 183.7-179.1c5-4.9 8.3-11.3 9.3-18.3 2.7-17.5-9.5-33.7-27-36.3z"></path></svg><svg v-else-if="character === 'heart'" class="u-star" :style="`width: ${size}px;`" focusable="false" data-icon="heart" aria-hidden="true" viewBox="64 64 896 896"><path d="M923 283.6a260.04 260.04 0 00-56.9-82.8 264.4 264.4 0 00-84-55.5A265.34 265.34 0 00679.7 125c-49.3 0-97.4 13.5-139.2 39-10 6.1-19.5 12.8-28.5 20.1-9-7.3-18.5-14-28.5-20.1-41.8-25.5-89.9-39-139.2-39-35.5 0-69.9 6.8-102.4 20.3-31.4 13-59.7 31.7-84 55.5a258.44 258.44 0 00-56.9 82.8c-13.9 32.3-21 66.6-21 101.9 0 33.3 6.8 68 20.3 103.3 11.3 29.5 27.5 60.1 48.2 91 32.8 48.9 77.9 99.9 133.9 151.6 92.8 85.7 184.7 144.9 188.6 147.3l23.7 15.2c10.5 6.7 24 6.7 34.5 0l23.7-15.2c3.9-2.5 95.7-61.6 188.6-147.3 56-51.7 101.1-102.7 133.9-151.6 20.7-30.9 37-61.5 48.2-91 13.5-35.3 20.3-70 20.3-103.3.1-35.3-7-69.6-20.9-101.9zM512 814.8S156 586.7 156 385.5C156 283.6 240.3 201 344.3 201c73.1 0 136.5 40.8 167.7 100.4C543.2 241.8 606.6 201 679.7 201c104 0 188.3 82.6 188.3 184.5 0 201.2-356 429.3-356 429.3z"></path></svg><span v-else class="u-star" :style="`font-size: ${0.66*size}px; height: ${size}px;`"><slot name="character">{{ character }}</slot></span></div><divclass="u-star-second":class="{'temp-gray-second': tempValue === n}"@click.stop="onClick(n)"@mouseenter="onSecondEnter(n)"@mouseleave="resetTempValue"><svg v-if="character === 'star'" class="u-star" :style="`width: ${size}px;`" focusable="false" data-icon="star" aria-hidden="true" viewBox="64 64 896 896"><path d="M908.1 353.1l-253.9-36.9L540.7 86.1c-3.1-6.3-8.2-11.4-14.5-14.5-15.8-7.8-35-1.3-42.9 14.5L369.8 316.2l-253.9 36.9c-7 1-13.4 4.3-18.3 9.3a32.05 32.05 0 00.6 45.3l183.7 179.1-43.4 252.9a31.95 31.95 0 0046.4 33.7L512 754l227.1 119.4c6.2 3.3 13.4 4.4 20.3 3.2 17.4-3 29.1-19.5 26.1-36.9l-43.4-252.9 183.7-179.1c5-4.9 8.3-11.3 9.3-18.3 2.7-17.5-9.5-33.7-27-36.3z"></path></svg><svg v-else-if="character === 'heart'" class="u-star" :style="`width: ${size}px;`" focusable="false" data-icon="heart" aria-hidden="true" viewBox="64 64 896 896"><path d="M923 283.6a260.04 260.04 0 00-56.9-82.8 264.4 264.4 0 00-84-55.5A265.34 265.34 0 00679.7 125c-49.3 0-97.4 13.5-139.2 39-10 6.1-19.5 12.8-28.5 20.1-9-7.3-18.5-14-28.5-20.1-41.8-25.5-89.9-39-139.2-39-35.5 0-69.9 6.8-102.4 20.3-31.4 13-59.7 31.7-84 55.5a258.44 258.44 0 00-56.9 82.8c-13.9 32.3-21 66.6-21 101.9 0 33.3 6.8 68 20.3 103.3 11.3 29.5 27.5 60.1 48.2 91 32.8 48.9 77.9 99.9 133.9 151.6 92.8 85.7 184.7 144.9 188.6 147.3l23.7 15.2c10.5 6.7 24 6.7 34.5 0l23.7-15.2c3.9-2.5 95.7-61.6 188.6-147.3 56-51.7 101.1-102.7 133.9-151.6 20.7-30.9 37-61.5 48.2-91 13.5-35.3 20.3-70 20.3-103.3.1-35.3-7-69.6-20.9-101.9zM512 814.8S156 586.7 156 385.5C156 283.6 240.3 201 344.3 201c73.1 0 136.5 40.8 167.7 100.4C543.2 241.8 606.6 201 679.7 201c104 0 188.3 82.6 188.3 184.5 0 201.2-356 429.3-356 429.3z"></path></svg><span v-else class="u-star" :style="`font-size: ${0.66*size}px; height: ${size}px;`"><slot name="character">{{ character }}</slot></span></div></div></div>
</template>
<style lang="less" scoped>
.m-rate {display: inline-block;.m-star {position: relative;display: inline-block;cursor: pointer;transition: all 0.3s;&:hover {transform: scale(1.1);}.u-star {display: inline-flex;align-items: center;text-align: center;vertical-align: middle;fill: rgba(0, 0, 0, 0.06);color: rgba(0, 0, 0, 0.06);transition: all 0.3s;}.u-star-first {position: absolute;top: 0;width: 50%;height: 100%;opacity: 0;overflow: hidden;transition: all 0.3s;&:hover {opacity: 1;.u-star {fill: #fadb14;color: #fadb14;}}}.u-star-second {display: inline-block;&:hover {.u-star {fill: #fadb14;color: #fadb14;}}}.temp-gray-first {&:hover {opacity: 0;.u-star {fill: rgba(0, 0, 0, 0.06);color: rgba(0, 0, 0, 0.06);}}}.temp-gray-second {&:hover {.u-star {fill: rgba(0, 0, 0, 0.06);color: rgba(0, 0, 0, 0.06);}}}}.u-star-half {.u-star-first {opacity: 1;.u-star {fill: #fadb14;color: #fadb14;}}}.u-star-full {.u-star-second {.u-star {fill: #fadb14;color: #fadb14;}}}
}
.disabled {pointer-events: none;
}
</style>
②在要使用的页面引入：
<script setup lang="ts">
import { Rate } from './Rate.vue'
import { ref, watch } from 'vue'const value = ref(2.99)
const desc = ref(['terrible', 'bad', 'normal', 'good', 'wonderful'])
watch(value, (to) => {console.log('p to:', to)
})
function onChange (value: number) {console.log('change value:', value)
}
function onHoverChange (value: number) {console.log('hover value:', value)
}
</script>
<template><div><h2 class="mb10">Rate 评分基本使用 (character: star)</h2><Rate:count="5"character="star":disabled="false"v-model:value="value"@change="onChange"@hoverChange="onHoverChange"/><h2 class="mt30 mb10">使用预置的心型字符图标，并设置高度为30px (character: heart & size: 30)</h2><Rate:allowClear="true":allowHalf="true":count="5"character="heart":size="30":disabled="false"v-model:value="value"@change="onChange"@hoverChange="onHoverChange"/><h2 class="mt30 mb10">使用中文: 好 (character: 好 & size: 30)</h2><Rate:allowClear="false":allowHalf="true":count="5"character="好":size="30"v-model:value="value"@change="onChange"@hoverChange="onHoverChange"/><h2 class="mt30 mb10">使用英文字母: A (character: A & size: 50)</h2><Rate:allowClear="false":allowHalf="true":count="5"character="A":size="50"v-model:value="value"@change="onChange"@hoverChange="onHoverChange"/></div>
</template>
<style lang="less" scoped>
</style>