效果图：

组件完整代码如下：

<template><view class="base-style":style="'position: relative;width: ' + diameter + 'px;height: ' + diameter + 'px;display: flex;flex-direction: row;background-color: ' + bgColor + ';'"><!-- 左半圆和右半圆都要经历下面的5步:[第1步]第1层限定区域; [第2步]第2层决定显示一个整圆的左半边还是右半边; [第3步]第3层先使用激活颜色绘制一个圆环, 再添加一个同级且宽度为区域一半的盒子A;[第4步]在盒子A中再使用圆环底色绘制一个圆环, 此时整个圆环是 '左一半是激活颜色、右一半是圆环底色', 但这个圆环同时只能被看到一半;[第5步]旋转第2层。 --><!-- 左半圆 --><view class="base-style" :style="firstLayerViewStyle"><view :style="secondLayerViewStyle + secondLayerForLeft"><!-- 使用激活颜色绘制一个圆环。 --><view :style="thirdLayerStyle"></view><!-- 再使用背景色遮盖同级圆环的一半。 --><view class="base-style" :style="thirdLayerStyleForBg"><view :style="fourthLayerStyleForBg" /></view><view v-if="0 < ePercent && ePercent < 0.5" :style="endPointStyle + endPointStyleForLeft" /></view></view><!-- 右半圆 --><view class="base-style" :style="firstLayerViewStyle"><!-- 适配：为了避免右侧遮盖显示不全 此处向左多移动了1px --><view :style="secondLayerViewStyle + 'left: ' + (- diameter / 2 - 1) + 'px;' + secondLayerForRight"><!-- 使用激活颜色绘制一个圆环。 --><view :style="thirdLayerStyle"></view><!-- 再使用背景色遮盖同级圆环的一半。 --><view class="base-style" :style="thirdLayerStyleForBg"><view :style="fourthLayerStyleForBg" /></view><view v-if="ePercent > 0.5" :style="endPointStyle + endPointStyleForRight" /></view></view><view v-if="0.5 == ePercent" :style="endPointStyle + 'background-color: ' + this.hoopBgColor + ';'" /><!-- #ifdef APP-PLUS --><!-- 处理现象: 安卓App的顶部和底部会有一个小白点。 --><!-- <view v-if="ePercent > 0.5" :style="'position: absolute;top: 0;' + repairPointStyle" /> --><!-- <view v-if="1.0 == ePercent" :style="'position: absolute;bottom: 0;' + repairPointStyle" /> --><!-- #endif --></view>
</template><!-- 组件名称： 圆环进度条。启发地址： https://www.cnblogs.com/jr1993/p/4677921.html 。编者信息： 867003077@qq.com 。 -->
<script>export default {name: 'progressCircle',props: {// 背景色（不宜设置为透明 否则 需要 在 左thirdLayer 的外面 再嵌套一个盒子）。bgColor: {type: String,default: '#FFFFFF'},// 圆环的外直径（单位px）。diameter: {type: Number,default: 250},// 圆环线条的厚度（单位px）。hoopThickness: {type: Number,default: 8},// 圆环底色（灰色的圆环）。hoopBgColor: {type: String,// default: 'transparent'default: '#F3F3F3'},// 圆环激活部分的颜色。hoopColor: {type: String,default: '#FF4C20'},// 圆环进度百分比值（其值范围在0到1之间）。percent: {type: [Number, String],default: 0,validator: val => {return val >= 0 && val <= 1;},},animate: {type: Boolean,default: false,},},data() {return {targetPercent: 0,ePercent: 0,showTimer: undefined,};},watch: {percent: {handler: function() {console.log('progressCircle_watch_percent', this.percent);this.loadData();},},},computed: {firstLayerViewStyle() {return 'position: relative;width: ' + (this.diameter / 2) +'px;height: ' + this.diameter + 'px;';},secondLayerViewStyle() {return 'box-sizing: border-box;position: absolute;top: 0;width: ' + this.diameter +'px;height: ' + this.diameter + 'px;';},thirdLayerStyle() {return 'box-sizing: border-box;width: ' + this.diameter + 'px;height: ' + this.diameter +'px;border-radius: ' + (this.diameter / 2) +'px;border-width: ' + this.hoopThickness +'px;border-style: solid;border-color: ' + this.hoopColor + ';';},thirdLayerStyleForBg() {return 'box-sizing: border-box;position: absolute;top: 0;left: ' + (this.diameter / 2) + 'px;width: ' +this.diameter + 'px;height: ' + this.diameter + 'px;background-color: ' + this.bgColor + ';';},fourthLayerStyleForBg() {return 'box-sizing: border-box;margin-left: ' + (-this.diameter / 2) + 'px;width: ' + this.diameter +'px;height: ' +this.diameter + 'px;border-radius: ' + (this.diameter / 2) + 'px;border-width: ' +this.hoopThickness + 'px;border-style: solid;border-color: ' + this.hoopBgColor + ';';},secondLayerForLeft() {let angle = 0;if (this.ePercent < 0.5) {angle += (180 * (this.ePercent - 0.5) / 0.5);}// #ifdef APP-PLUSreturn 'left: 0;transform: rotate(' + angle + 'deg);';// #endif// #ifdef MP-WEIXINreturn 'left: 0;transform: rotate(' + angle + 'deg);-webkit-transform: rotate(' + angle + 'deg);';// #endif},secondLayerForRight() {let angle = 0;if (this.ePercent > 0.5) {angle += (180 * (this.ePercent - 0.5) / 0.5);}// #ifdef APP-PLUSreturn 'right: 0;transform: rotate(' + angle + 'deg);';// #endif// #ifdef MP-WEIXINreturn 'right: 0;transform: rotate(' + angle + 'deg);-webkit-transform: rotate(' + angle + 'deg);';// #endif},// repairPointStyle() {// 	return 'left: ' + (this.diameter - this.hoopThickness) / 2 + 'px;width: ' +// 		this.hoopThickness + 'px;height: ' + this.hoopThickness + 'px;border-radius: ' +// 		this.hoopThickness / 2 + 'px;background-color: ' + this.hoopColor + ';';// },endPointStyle() {// 结束点圆心圈直径。const _circleCenterRadius = 2;return 'box-sizing: border-box;position: absolute;top: 0;left: ' + (this.diameter - this.hoopThickness) / 2 +'px;width: ' +this.hoopThickness + 'px;height: ' + this.hoopThickness + 'px;border-radius: ' + (this.hoopThickness / 2) +'px;border-width: ' + (this.hoopThickness / 2 - _circleCenterRadius) +'px;border-style: solid;border-color: ' +this.hoopColor + ';';},endPointStyleForLeft() {return 'background-color: ' + ((this.ePercent > 0.5) ? this.hoopColor : this.hoopBgColor) + ';';},endPointStyleForRight() {return 'background-color: ' + ((1 == this.ePercent) ? this.hoopColor : this.hoopBgColor) + ';';},},mounted() {console.log('progressCircle_mounted');this.loadData();},methods: {loadData() {this.targetPercent = parseFloat(this.percent);console.log('progressCircle_loadData');if (!this.animate) {this.ePercent = this.targetPercent;} else {let _this = this;this.ePercent = 0;this.showTimer && clearInterval(this.showTimer);this.showTimer = setInterval(() => {let tempPercent = _this.ePercent + 0.1;if (tempPercent < _this.targetPercent) {_this.ePercent = tempPercent;return;};_this.ePercent = _this.targetPercent;clearInterval(_this.showTimer);}, 200);}}}}
</script><style scoped>.base-style {box-sizing: border-box;/* 溢出隐藏 */overflow: hidden;}
</style>

调用页面：

<template><view class="my-page-container" :style="{ 'height': pageBoxH + 'px' }" @click="currentPercent=0.8"><progress-circle class="mine-member-level-progress" :diameter="180" :hoopThickness="10" :hoopColor="'orange'":percent="currentPercent" :animate="true" /></view>
</template><script>/** 演示页面 */import progressCircle from "@/components/progress-circle/index.vue";// import {//   queryDetail,// } from '@/api/mine.js';export default {name: 'myDemo',components: {progressCircle,},data() {return {pageBoxH: 1000,currentPercent: 0.25,};},beforeCreate() {console.log('beforeCreate enter');},created() {console.log('created enter');},mounted() {console.log('mounted enter');},onLoad(option) {console.log('onLoad enter');},onReady() {},methods: {},}
</script><style scoped>.my-page-container {background-color: white;box-sizing: border-box;padding: 10px 10px 50px 10px;display: flex;flex-direction: column;}
</style>