vue实现一个可以弹奏的钢琴效果代码-html代码-BFW代码库

代码语言：html

所属分类：多媒体

代码描述：vue实现一个可以弹奏的钢琴效果代码，内置曲谱，可以录制弹奏过程并回放。

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <link type="text/css" rel="stylesheet" href="//repo.bfw.wiki/bfwrepo/css/font-awesome-4.7.0/css/font-awesome.min.css">
    <style>
        @charset "UTF-8";
        * {
          vertical-align: top;
          font-family: 微軟正黑體;
          -webkit-backface-visibility: hidden;
                  backface-visibility: hidden;
        }
        
        html, body {
          width: 100%;
          height: 100%;
          margin: 0;
          padding: 0;
        }
        
        h2 {
          margin-bottom: 30px;
          color: #585858;
        }
        
        button {
          background-color: transparent;
          border: none;
          border: solid 1px;
          padding: 4px 12px;
          border-radius: 4px;
          transition: 0.5s;
          cursor: pointer;
          vertical-align: middle;
        }
        button:hover {
          background-color: #585858;
          color: white;
        }
        
        .notes_list li {
          display: inline-block;
          border-right: solid 1px;
          padding: 2px 5px;
          cursor: pointer;
          transition: 0.3s;
        }
        .notes_list li:hover {
          background-color: #e1e1e1;
        }
        .notes_list li.playing {
          background-color: #d5d5d5;
        }
        .notes_list li .time {
          font-size: 8px;
          opacity: 0.3;
        }
        .notes_list li .num {
          font-size: 16px;
        }
        
        .center_box {
          position: absolute;
          left: 50%;
          top: 50%;
          transform: translate(-50%, -50%);
          text-align: center;
          width: 100%;
        }
        
        .keyboard {
          box-shadow: 0px 0px 40px -5px rgba(0, 0, 0, 0.4);
          display: inline-block;
          margin-bottom: 30px;
        }
        
        .pianokey {
          display: inline-block;
          position: relative;
          cursor: pointer;
        }
        
        .white.playing {
          background-color: #d5d5d5;
          transform: translate(0px, 0px);
        }
        
        .black.playing {
          background-color: #727272;
          transform: translate(0px, 0px);
        }
        
        .white {
          width: 44px;
          height: 300px;
          border: solid 1px #eee;
          transform: translate(-3px, -3px);
          transition: 0.1s;
        }
        .white:hover {
          transform: translate(0px, 0px);
          background-color: #eee;
        }
        
        .black {
          position: absolute;
          top: 0px;
          width: 22px;
          height: 165px;
          background-color: #585858;
          margin-left: -11px;
          margin-right: -11px;
          z-index: 20;
          transform: translate(-3px, -3px);
          transition: 0.1s;
        }
        .black:hover {
          transform: translate(0px, 0px);
          background-color: #3f3f3f;
        }
        
        .label {
          position: absolute;
          color: rgba(88, 88, 88, 0.5);
          bottom: -25px;
          left: 50%;
          transform: translate(-50%);
          font-size: 8px;
        }
        
        i {
          margin-left: 5px;
          margin-right: 0px;
          margin-top: 3px;
        }
        
        i.fa-circle {
          color: #cc0000;
        }
    </style>




</head>

<body>
    <div id="app">
        <div class="audioplayer" v-for="s in sounddata">
            <audio v-bind:data-num="s.number" preload="auto">
      <source v-bind:src="s.url" type="audio/ogg"/>
    </audio>
        </div>
        <div class="center_box">
            <h2>Vue.js Piano Project 7</h2>
            <div class="keyboard">
                <div class="pianokey" v-for="s in display_keys">
                    <div class="white" v-if="s.type==&quot;white&quot;" v-on:click="addnote(s.num)" v-bind:class="get_current_highlight(s.num,s.key)?&quot;playing&quot;:&quot;&quot;">
                        <div class="label">{{String.fromCharCode(s.key)}}</div>
                    </div>
                    <div class="black" v-if="s.type==&quot;black&quot;" v-on:click="addnote(s.num)" v-bind:class="get_current_highlight(s.num,s.key)?&quot;playing&quot;:&quot;&quot;">
                        <div class="label">{{String.fromCharCode(s.key)}}</div>
                    </div>
                </div>
            </div><br/>
            <div class="controls">
                <ul class="notes_list" v-if="notes.length&gt;0">
                    <li v-for="(note,id) in notes" v-bind:class="now_note_id-1==id?&quot;playing&quot;:&quot;&quot;">
                        <div class="num">{{note.num}}</div>
                        <div class="time">{{note.time}}</div>
                    </li>
                </ul>
                <button v-on:click="load_sample">Sample</button>
                <button v-on:click="playnext(1)">Playnext</button>
                <button v-if="playing_time&lt;=1" v-on:click="startplay">Startplay<i class="fa fa-play"></i></button>
                <button v-if="playing_time&gt;1" v-on:click="stopplay">Stopplay<i class="fa fa-pause"></i></button>
                <button v-if="record_time&lt;=0" v-on:click="start_record">Record<i class="fa fa-circle"></i></button>
                <button v-if="record_time&gt;=1" v-on:click="stop_record">StopRecord<i class="fa fa-top"></i></button>
                <button v-on:click="notes=[]">Clear</button>
                <h4>{{playing_time+record_time}}</h4>
            </div>
        </div>
    </div>


    <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/jquery-3.2.1.min.js"></script>
    <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/vue@2.6.1-dev.js"></script>
    <script>
        var soundpack = [];
        var soundpack_index = [1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 8, 8.5, 9, 9.5, 10, 11, 11.5, 12, 12.5, 13, 13.5, 14, 15];
        for (var i = 0; i < soundpack_index.length; i++) {
          soundpack.push({
            number: soundpack_index[i],
            url: "//repo.bfw.wiki/bfwrepo/sound/piano/" + soundpack_index[i] + ".wav" });
        
        
        }
        
        var vm = new Vue({
          el: "#app",
          data: {
            sounddata: soundpack,
            notes: [{ "num": 1, "time": 150 }, { "num": 1, "time": 265 }, { "num": 5, "time": 380 }, { "num": 5, "time": 501 }, { "num": 6, "time": 625 }, { "num": 6, "time": 748 }, { "num": 5, "time": 871 }, { "num": 4, "time": 1126 }, { "num": 4, "time": 1247 }, { "num": 3, "time": 1365 }, { "num": 3, "time": 1477 }, { "num": 2, "time": 1597 }, { "num": 2, "time": 1714 }, { "num": 1, "time": 1837 }],
            now_note_id: 0,
            next_note_id: 0,
            playing_time: 0,
            record_time: 0,
            now_press_key: -1,
            player: null,
            recorder: null,
            display_keys: [
            { num: 1, key: 90, type: 'white' },
            { num: 1.5, key: 83, type: 'black' },
            { num: 2, key: 88, type: 'white' },
            { num: 2.5, key: 68, type: 'black' },
            { num: 3, key: 67, type: 'white' },
            { num: 4, key: 86, type: 'white' },
            { num: 4.5, key: 71, type: 'black' },
            { num: 5, key: 66, type: 'white' },
            { num: 5.5, key: 72, type: 'black' },
            { num: 6, key: 78, type: 'white' },
            { num: 6.5, key: 74, type: 'black' },
            { num: 7, key: 77, type: 'white' },
            { .........完整代码请登录后点击上方下载按钮下载查看