本篇文章手把手帶大家使用CSS+jQuery實現(xiàn)一個文字轉語音機器人，希望對大家有所幫助！
素材
機器人眼睛
頁面布局
機器人樣式參考了下圖，通過css拼造型的方式進行實現(xiàn)。部分還原了設計圖
頭頂部分 頭頂部分是一個圓+偽類after實現(xiàn)白點
<div class="tianxian"></div>
.tianxian{
width: 35px;
height: 35px;
border-radius: 50%;
background: #0e58cc;
position: absolute;
left: 0;
right: 0;
top: 0;
margin: auto;
}
.tianxian::after{
content: '';
display: block;
width: 5px;
height: 10px;
border-radius: 12px;
background: #fff;
position: absolute;
top: 10px;
left: 5px;
transform: rotateZ(20deg);
}整體布局采用絕對定位布局 利用整個頭部，實現(xiàn)耳朵和眼睛的定位
<div class="head"> <div class="erduo"></div> <div class="erduo"></div> <div class="face"> <div class="eye"></div> <div class="eye"></div> </div> </div>
立體效果 通過box-shadow 的inset特性，通過適當偏移x,y軸，實現(xiàn)內(nèi)陰影的立體效果
box-shadow: -5px -5px 30px 1px #0075af inset;
文字轉語音實現(xiàn)
基于瀏覽器提供的SpeechSynthesisUtterance Api進行實現(xiàn)
SpeechSynthesisUtterance基本屬性
SpeechSynthesisUtterance.lang獲取并設置話語的語言
SpeechSynthesisUtterance.pitch獲取并設置話語的音調(diào)(值越大越尖銳,越低越低沉)
SpeechSynthesisUtterance.rate獲取并設置說話的速度(值越大語速越快,越小語速越慢)
SpeechSynthesisUtterance.text獲取并設置說話時的文本
SpeechSynthesisUtterance.voice獲取并設置說話的聲音
SpeechSynthesisUtterance.volume獲取并設置說話的音量
SpeechSynthesisUtterance.text基本方法
speak()將對應的實例添加到語音隊列中
cancel()刪除隊列中所有的語音.如果正在播放,則直接停止
pause()暫停語音
resume()恢復暫停的語音
為按鈕添加點擊事件，獲取input輸入框的值，并進行播放，添加眼睛動畫，并在播放結束的回調(diào)移除眼睛動畫
$('#btn').click(function () {
let text = $('#input').val()
if (text) {
$('.eye').addClass('shine')
}
let u = new window.SpeechSynthesisUtterance()
u.text = text
u.lang = 'zh'
u.rate = 0.7
u.onend = function () {
$('.eye').removeClass('shine')
}
speechSynthesis.speak(u)
})動畫類：
.shine {
animation: shine 1s linear infinite;
}
@keyframes shine {
0%{
height: 100px;
}
100%{
height: 0px;
}
}
完整代碼：
HTML+CSS
<style>
* {
margin: 0;
padding: 0;
list-style: none;
box-sizing: border-box;
}
html,
body {
width: 100%;
height: 100%;
overflow: hidden;
background: #000;
}
.robot{
width: 658px;
height:800px;
position: absolute;
left: 0;
right: 0;
margin: auto;
top: 0;
bottom: 0;
}
.tianxian{
width: 35px;
height: 35px;
border-radius: 50%;
background: #0e58cc;
position: absolute;
left: 0;
right: 0;
top: 0;
margin: auto;
}
.tianxian::after{
content: '';
display: block;
width: 5px;
height: 10px;
border-radius: 12px;
background: #fff;
position: absolute;
top: 10px;
left: 5px;
transform: rotateZ(20deg);
}
.gun{
width: 5px;
height: 30px;
background:#0075af ;
position: absolute;
left: 0;
right: 0;
top: 35px;
margin: auto;
}
.gai{
width: 60px;
height: 60px;
background: #fff;
box-shadow: -5px -5px 30px 1px #0075af inset;
position: absolute;
left: 0;
right: 0;
top: 65px;
margin: auto;
border-radius: 50%;
}
.head{
width: 370px;
height: 350px;
position: absolute;
left: 0;
right: 0;
top: 95px;
margin: auto;
border-radius: 70px;
background: #fff;
box-shadow: -5px -5px 30px 1px #0075af inset;
}
.erduo{
width: 60px;
height: 180px;
background: #0022b0;
position: absolute;
top: 0;
bottom: 0;
margin: auto 0;
border-radius: 60px;
border-top: 4px solid #0e9df9;
border-bottom: 4px solid #0e9df9;
box-shadow: -5px -5px 30px 1px #0075af inset;
}
.erduo:nth-child(1) {
border-left: 4px solid #0e9df9;
left: -40px;
}
.erduo:nth-child(2){
border-right: 4px solid #0e9df9;
right: -40px;
box-shadow: -5px -5px 30px 1px #0075af inset;
}
.face{
width: 288px;
height: 244px;
background: #03192f;
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
margin: auto;
border-radius: 60px;
box-shadow: -5px -5px 30px 1px #0075af inset;
}
.eye{
width: 30px;
height: 100px;
background-image: url('https://p6-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/41c21816e3c740eaa43ade57de3eb5a5~tplv-k3u1fbpfcp-watermark.image');
background-size: contain;
position: absolute;
top: 0;
bottom: 0;
margin: auto;
}
.eye:nth-child(1){
left: 60px;
}
.eye:nth-child(2){
right: 60px;
}
.trans{
width:370px;
position: absolute;
display: flex;
justify-content: center;
align-items: center;
color: #fff;
left: 0;
right: 0;
margin: auto;
top: 600px;
font-size: 16px;
}
#input{
margin-right: 10px;
background: transparent;
border: none;
outline: none;
color: #fff;
border-bottom: 1px dashed #fff;
height: 40px;
}
#btn{
cursor: pointer;
}
.shine {
animation: shine 1s linear infinite;
}
@keyframes shine {
0%{
height: 100px;
}
100%{
height: 0px;
}
}
</style>
<body>
<div class="robot">
<div class="tianxian"></div>
<div class="gun"></div>
<div class="gai"></div>
<div class="head">
<div class="erduo"></div>
<div class="erduo"></div>
<div class="face">
<div class="eye"></div>
<div class="eye"></div>
</div>
</div>
</div>
<div class="trans">
<input id="input" type="text">
<div id="btn">點擊朗讀</div>
</div>
</body>js
$(function () {
$('#btn').click(function () {
let text = $('#input').val()
if (text) {
$('.eye').addClass('shine')
}
let u = new window.SpeechSynthesisUtterance()
u.text = text
u.lang = 'zh'
u.rate = 0.7
u.onend = function () {
$('.eye').removeClass('shine')
}
speechSynthesis.speak(u)
})
})
