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需求背景

要求实现转盘转动抽奖的功能：

1. 只有正确率大于等于 80% 才可以进行抽奖；
2. “谢谢参与”概率为 90%，“恭喜中奖”概率为 10%；

需求实现

实现过程图片示意

实现代码

安装插件

npm install @lucky-canvas/vue@latest

main.js 全局引入组件

import VueLuckyCanvas from '@lucky-canvas/vue'
Vue.use(VueLuckyCanvas)

实现代码

<template><div class="exam-result"><div class="info"><div class="progress"><nut-circleprogress:progress="(correct / total).toFixed(1) * 100":is-auto="true"color="#ff4d4f"path-color="#ffeded"><div class="progressDiv"><div class="accuracy">正确率{{ (correct / total).toFixed(1) * 100 }}%</div></div></nut-circleprogress></div></div><div class="content"><div class="result-table"><div style="padding: 10px 10px 10px 15px">试卷分析</div></div><div class="result-table"><div class="item"><div class="title">题目总量:</div><div class="total">{{ total }}</div><div class="unit">题</div></div></div><div class="result-table"><div class="item"><div class="title">正确题数:</div><div class="correct">{{ correct }}</div><div class="unit">题</div></div><div class="item"><div class="title">错误题数:</div><div class="error">{{ total - correct }}</div><div class="unit">题</div></div></div></div><div v-if="examType === 'challenge' && (correct / total).toFixed(1) >= 0.8" class="lottery_draw_btn">恭喜您获得抽奖资格 <nut-button type="primary" size="mini" @click="toLotteryDraw">点击进行抽奖</nut-button></div><nut-dialog teleport="#app" :title="isShowlotteryDraw ? '点击“开始”抽奖' : ''" content="" v-model:visible="dialogVisible" customClass="task" :noCancelBtn="true" :noOkBtn="true" :closeOnClickOverlay="false"><nut-icon name="close" @click="dialogVisible = false" /><LuckyWheelv-if="isShowlotteryDraw"class="myLucky"ref="myLuckyRef"width="320px"height="320px":prizes="prizes":blocks="blocks":buttons="buttons"@start="startCallback"@end="endCallback"/><div v-else class="result" :style="{'--color': lotteryDrawIndex === 1 ? 'red' : '#000'}">{{ lotteryDrawIndex === 1 ? "恭喜中奖" : "谢谢参与" }}</div></nut-dialog></div><fallback></fallback>
</template><script>
import {reactive, toRefs, ref, getCurrentInstance
} from 'vue'
import { useRoute } from 'vue-router'export default {name: 'result',setup() {// const myLuckyRef = ref(null) // 【ref问题】我的代码里这种办法取不到 ref，使用 getCurrentInstance 取 refconst instance = getCurrentInstance() // 【ref解决】使用 getCurrentInstance 取 refconst route = useRoute()const state = reactive({lotteryDrawIndex: 0, // 最终转盘定格的索引isShowlotteryDraw: true, // 是否抽奖完成// 转盘背景配置blocks: [{padding: '20px',imgs: [{// src: 'https://img.iwave.net.cn/jeep/51c95637a377c3a12d09abe8b0f975e6.png',src: require('@/assets/images/lottery_draw.png'),width: 320,height: 320,rotate: true}]}],// 每个扇形区域奖品配置prizes: [...Array(10).keys()].map((index) => ({fonts: [{text: index % 2 === 0 ? '谢谢参与' : '恭喜中奖',top: '15%',fontSize: '15px',fontColor: '#ed1c24',},],background: index % 2 === 0 ? '#fff5cc' : '#e9d6e9',})),// 抽奖按钮配置buttons: [{ radius: '50px', background: '#d034ac' },{ radius: '45px', background: '#fe97b2' },{radius: '35px',background: '#f04a07',pointer: true,fonts: [{ text: '开始', top: '-10px', fontColor: '#fff' }]}],// 抽奖弹框是否展示dialogVisible: false})// 获取正确题数、总题数const { correct, total, examType } = route.queryconst toLotteryDraw = () => {state.dialogVisible = true}// 点击抽奖按钮会触发star回调const startCallback = () => {console.log('"开始抽奖"----', '开始抽奖')// 调用抽奖组件的play方法开始游戏// console.log('myLucky.value----', myLuckyRef.value) // 【ref问题】// myLuckyRef.value?.play() // 【ref问题】if (instance) {instance.refs?.myLuckyRef?.play() // 【ref解决】}// this.$refs.myLucky.play()  // 【ref】vue2写法// 模拟调用接口异步抽奖setTimeout(() => {// 假设index（谢谢参与90%，恭喜中奖10%）const index = `${Math.random()}`.slice(2, 3) * 1state.lotteryDrawIndex = index === 1 ? 1 : 2// 调用stop停止旋转并传递中奖索引// this.$refs.myLuckyRef.stop(index)   // 【ref】vue2写法// myLuckyRef.value?.stop(index) // 【ref问题】if (instance) {instance.refs?.myLuckyRef?.stop(state.lotteryDrawIndex) // 【ref解决】}}, 3000)}// 抽奖结束会触发end回调const endCallback = (prize) => {console.log('"结束抽奖"----', '结束抽奖')console.log(prize)state.isShowlotteryDraw = false}return {...toRefs(state),correct,total,examType,toLotteryDraw,startCallback,endCallback}}
}
</script><style scoped lang="less">
.exam-result {.info {margin: 0 0 5px;padding: 10px;background-color: white;.progress {display: flex;flex-direction: column;align-items: center;padding: 5px;position: relative;.nut-circleprogress {width: 145px !important;height: 145px !important;position: relative;.progressDiv {display: flex;flex-direction: column;align-items: center;.accuracy {color: #00000080;background-color: #ffeded;padding: 2px 8px;font-size: 13px;border-radius: 5px;}}}.circle {position: absolute;height: 145px;width: 145px;background-color: #ffeded;border-radius: 50%;top: 5px;left: 50%;transform: translate(-50%);.circle1 {position: absolute;height: 115px;width: 115px;background-color: #ffffff;border-radius: 50%;top: 50%;left: 50%;transform: translate(-50%, -50%);}}}.count {background-color: #fffbf3;margin-top: 10px;padding-top: 5px;color: #797e79;font-size: 14px;display: flex;justify-content: space-around;.centerDiv {display: flex;align-items: baseline;justify-content: center;.number {margin-right: 5px;font-size: 20px;color: #FAAD14;}.text {font-size: 12px;}}}}.content {margin-bottom: 10px;background: white;border-bottom: 1px solid #dcdcdc;.result-table {display: flex;font-size: 16px;font-weight: bolder;color: #000;.item {display: flex;align-items: baseline;border-top: 0.5px solid #dcdcdc;flex: 1;font-size: 16px;padding: 10px 10px 10px 15px;color: #7f7f7f;font-weight: normal;&:nth-child(2n+1) {border-right: 0.5px solid #dcdcdc;}.title {margin-right: 5px;font-size: 14px;}.unit {font-size: 12px;margin-left: 5px;}.time,.total {color: black;font-size: 16px;}.correct {color: #04be01;font-size: 18px;}.error {color: red;font-size: 18px;}}}}// 弹框样式::v-deep .popup-center.round {width: 90%;.nut-dialog {width: 100%;padding: 20px 5px;.nut-dialog__content {max-height: unset;.nut-icon-close {position: absolute;top: 15px;right: 15px;}// 转盘结束展示结果.result {height: 80px;line-height: 80px;font-size: 20px;font-weight: bold;color: var(--color);}// 转盘.myLucky {display: inline-block;}}}}// 抽奖弹框按钮.lottery_draw_btn {height: 25PX;line-height: 25PX;padding: 0 10px;cursor: pointer;font-size: 16px;color: red;}
}
</style>

页面效果

lucky-canvas 插件官方文档

lucky-canvas 插件官网
lucky-canvas 插件官网文档

可参考文档