vue element-ui 下拉框 以及 input 限制输入，小数点后保留两位 界面设计案例 和 例子：支持mp4和m3u8视频播放

vue input 限制输入，小数点后保留两位 以及 图片垂直居中显示 和 分享 git 小技巧-CSDN博客文章浏览阅读430次，点赞5次，收藏4次。error:Your local changes to the following files would be overwritten by merge:_error: your local changes to the following files w-CSDN博客。情况二：当本地的已经乱了，但是远端的master已经合并了你最后一次的代码，此时你可以先把你本地修改的文件先拷贝一份出来，然后让远端的master的代码强行覆盖掉当前的目录内容。https://blog.csdn.net/weixin_41987016/article/details/139592956?spm=1001.2014.3001.5501（1）下拉框 以及 input 限制输入，小数点后保留两位 界面设计案例

<template><div class="info-settings"><el-form :model="formData" label-width="120px"><el-form-item label="类型:"><el-select v-model="formData.infoType" placeholder="请选择"><el-option label="周提醒" value="weekly"></el-option><el-option label="月提醒" value="monthly"></el-option></el-select></el-form-item><el-form-item label="提醒标准:"><div class="form-item"><el-button class="text-button self-button" plain disabled>就业率</el-button><el-select v-model="formData.thresholdOperator" placeholder="请选择" disabled><el-option label=">" value="greaterThan"></el-option><el-option label="<" value="lessThan"></el-option></el-select><el-input v-model="formData.thresholdValue" placeholder="请输入"@input="checkThresholdValue(formData.thresholdValue)" @blur="completeThresholdValue"><i slot="suffix" style="font-style:normal;margin-right: 10px;">%</i></el-input></div></el-form-item><el-form-item><div class="form-item"><el-button class="text-button self-button" plain disabled>GPD</el-button><el-select v-model="formData.GPDOperator" placeholder="请选择" disabled><el-option label=">" value="greaterThan"></el-option><el-option label="<" value="lessThan"></el-option></el-select><el-input v-model="formData.GPDValue" placeholder="请输入" @input="checkGPDValue(formData.GPDValue)"@blur="completeGPDValue"><i slot="suffix" style="font-style:normal;margin-right: 10px;">%</i></el-input></div></el-form-item><el-form-item><div class="form-item"><el-button class="text-button self-button" plain disabled>工资</el-button><el-select v-model="formData.revenueOperator" placeholder="请选择" disabled><el-option label=">" value="greaterThan"></el-option><el-option label="<" value="lessThan"></el-option></el-select><el-input v-model="formData.revenueValue" placeholder="请输入" @input="checkRevenueValue(formData.revenueValue)"@blur="completeRevenueValue"><i slot="suffix" style="font-style:normal;margin-right: 10px;">元</i></el-input></div></el-form-item><el-form-item label="提醒文案标题:"><el-input type="textarea" v-model="formData.infoMessage" placeholder="请输入提醒文案标题" maxlength="20" show-word-limit></el-input></el-form-item><el-form-item label="提醒文案内容:"><el-input type="textarea" v-model="formData.infoContent" placeholder="请输入提醒文案内容" maxlength="200" show-word-limit></el-input></el-form-item><el-form-item><el-button @click="cancel" class="medium-button">取消</el-button><el-button type="primary" @click="confirm" class="medium-button">确定</el-button></el-form-item></el-form></div>
</template><script>
export default {data() {return {formData: {infoType: 'weekly',thresholdOperator: 'greaterThan',thresholdValue: '',GPDOperator: 'lessThan',GPDValue: '',revenueOperator: 'greaterThan',revenueValue: '',infoMessage: '',infoContent: ''}};},methods: {cancel() {// 取消按钮的操作},confirm() {// 确定按钮的操作},checkThresholdValue(value) {this.formData.thresholdValue = this.checkNumber(value);},checkGPDValue(value) {this.formData.GPDValue = this.checkNumber(value);},checkRevenueValue(value) {this.formData.revenueValue = this.checkNumber(value);},checkNumber(value) {let number = value.replace(/[^\d.]/g, '') // 清除“数字”和“.”以外的字符.replace(/\.{2,}/g, '.') // 只保留第一个. 清除多余的.replace(/^(-)*(\d+)\.(\d{0,2}).*$/, '$1$2.$3'); // 只能输入两个小数return number;},completeThresholdValue() {this.completeNumber('thresholdValue');},completeGPDValue() {this.completeNumber('GPDValue');},completeRevenueValue() {this.completeNumber('revenueValue');},completeNumber(field) {let value = this.formData[field].trim();if (!value) {this.formData[field] = ''; // 如果数字为空，则清空输入框return; // 如果数字为空，不继续进行后续操作}let number = parseFloat(value).toFixed(2); // 将数字转换为浮点数再转换回字符串，去掉前导零if ((number < 0 || number > 100) && field.toString() !== 'revenueValue') {this.$message.error({message: '输入的范围应为0-100%',duration: 400});this.number = undefinedreturn}// 判断价格小数部分是否需要补全const needsCompletion = !/\.\d{2}$/.test(value)this.formData[field] = number;// 如果需要补全，则提示用户if (needsCompletion) {this.$message.info({message: '数字已自动补全为两位小数。',duration: 400});}}}
};
</script><style scoped>
.info-settings .el-form-item__content {display: flex;align-items: center;
}.info-settings .el-input__suffix {font-size: 14px;
}.form-item {display: flex;align-items: center;margin-bottom: 10px;/* 添加下方间距 */
}.form-item>* {margin-right: 10px;
}.text-button {color: #909399;font-size: 14px;
}.self-button {min-width: 80px;/* 设置按钮最小宽度 */color: #000000;/* 设置按钮文字颜色为黑色 */display: flex;justify-content: center;/* 文本水平居中 */align-items: center;/* 文本垂直居中 */
}.medium-button {width: 80px;/* 设置按钮宽度 */
}</style>
<style>
.el-textarea__inner::-webkit-scrollbar {width: 6px;height: 6px;
}.el-textarea__inner::-webkit-scrollbar-thumb {border-radius: 3px;-moz-border-radius: 3px;-webkit-border-radius: 3px;background-color: #c3c3c3;
}.el-textarea__inner::-webkit-scrollbar-track {background-color: transparent;
}
</style>

（2）点击表格中的图片，可以查看，图片可以垂直水平居中放在表格中

<template><div><el-table :data="tableData" :cell-style="{ textAlign: 'center' }" :header-cell-style="{ textAlign: 'center' }"><el-table-column prop="name" label="Name"></el-table-column><el-table-column prop="age" label="Age"></el-table-column><el-table-column prop="gender" label="Gender"></el-table-column><el-table-column label="Cover" align="center" class="no-padding"><template slot-scope="scope"><div class="cover-wrapper"><el-image class="cover-image" :src="require('@/assets/cover_test.png')" style="object-fit: cover;"@click="showImage(scope.row.cover)"></el-image></div></template></el-table-column></el-table><!-- 图片查看器 --><div v-if="isImageViewerOpen" class="image-overlay" @click="hideImageViewer"><el-image :src="currentImage" class="image-viewer"></el-image></div></div>
</template><script>export default {data() {return {tableData: [{ name: 'John', age: 30, gender: 'Male', cover: require('@/assets/cover_test.png') },{ name: 'Jane', age: 25, gender: 'Female', cover: require('@/assets/cover_test.png') },// Add more data as needed],isImageViewerOpen: false,currentImage: '',viewerVisible: false};},methods: {showImage(image) {this.currentImage = image;this.isImageViewerOpen = true;this.viewerVisible = true;},hideImageViewer() {this.isImageViewerOpen = false;}}
};
</script><style scoped>
/* .cover-wrapper {position: relative;overflow: hidden;}.cover-image {width: 80px;height: 45px;cursor: pointer;} */
.image-overlay {position: fixed;top: 0;left: 0;right: 0;bottom: 0;background: rgba(0, 0, 0, 0.7);z-index: 9999;display: flex;justify-content: center;align-items: center;
}.image-viewer {max-width: 90%;max-height: 90%;
}
</style><style scoped>
.cover-wrapper {position: relative;overflow: hidden;
}.el-table .cover-image-show {width: 80px;top: 2.5px;height: 45px;cursor: pointer;
}/* 将表格中带有no-padding类的单元格的padding设置为0 */
.el-table /deep/ .cell {padding: 0;
}
</style>

（3）支持mp4和m3u8视频播放 

<template><div><el-button @click="openDialog('http://ai-xxxxxxxx_34.m3u8', 1)" type="primary">Open Video 1 (.m3u8)</el-button><el-button @click="openDialog('http://tx-xxxx.mp4', 2)" type="primary">Open Video 2 (.mp4)</el-button><el-button @click="openDialog('', 3)" type="primary">Unable to play.</el-button><el-button @click="openDialog('http://tx-xx.cdn.xxx.com/2422/12233421/', 3)" type="primary">err Link</el-button><el-dialogv-if="showDialog":visible.sync="showDialog":title="'Video ' + currentPlayerId"@close="closeDialog"width="720px"class="video-dialog"><div v-if="videoError"><p>{{ videoError }}</p></div><video :id="'videoPlayer' + currentPlayerId" :class="videoClass" style="width: 100%;" controls preload="auto" :width="videoWidth" ></video></el-dialog></div>
</template><script>
import videojs from 'video.js';
import 'video.js/dist/video-js.css';export default {data() {return {showDialog: false,currentPlayerId: null,videoPlayer: null,videoError: null,videoWidth: '720px', // Default widthvideoHeight: '450px', // Default heightvideoClass: 'video-js vjs-default-skin vjs-big-play-centered' // Default class};},methods: {openDialog(url, playerId) {this.showDialog = true;this.currentPlayerId = playerId;this.videoError = null;// Wait for next tick to ensure the element is mounted before initializing Video.jsthis.$nextTick(() => {this.initVideoPlayer(url);});},closeDialog() {if (this.videoPlayer) {this.videoPlayer.dispose();this.videoPlayer = null;}this.showDialog = false;this.currentPlayerId = null;this.videoError = null;},initVideoPlayer(url) {this.videoPlayer = videojs('videoPlayer' + this.currentPlayerId, {html5: {hls: {overrideNative: true}},playbackRates: [0.5, 1, 1.5, 2]});this.videoPlayer.on('error', (error) => {console.error('Video playback error:', error);this.videoError = 'Unable to play the video.';});const type = this.getVideoType(url);if (type === 'video/mp4') {this.videoPlayer.src({src: url,type: 'video/mp4'});} else if (type === 'application/x-mpegURL') {this.videoPlayer.src({src: url,type: 'application/x-mpegURL'});}this.videoPlayer.ready(() => {// 忽略未使用的变量/* eslint-disable no-unused-vars */// const videoEl = document.getElementById('videoPlayer' + this.currentPlayerId);// const aspectRatio = this.videoPlayer.videoWidth() / this.videoPlayer.videoHeight();// this.videoWidth = 720;// this.videoHeight = this.videoWidth / aspectRatio;// videoEl.style.height = `${this.videoHeight}px`;this.videoPlayer.play();});},getVideoType(url) {const extension = url.toLowerCase().includes('.mp4') ? 'mp4' : 'm3u8';if (extension === 'mp4') {return 'video/mp4';} else if (extension === 'm3u8') {return 'application/x-mpegURL';} else {return '';}}},beforeDestroy() {if (this.videoPlayer) {this.videoPlayer.dispose();this.videoPlayer = null;}}
};
</script><style>
/* Add any custom styles for the video player here */
.video-dialog {.el-dialog__header {border-bottom: none;}.el-dialog__body {padding: 0;}/*.dialog-content {padding:0 40px;}.el-dialog__footer {padding: 10px 10px 10px;border-top: none;} */
}</style>