因此，我仅在我的JSON数据中添加了两个URL，它们都与一首歌曲相关。
现在，前两个图像具有不同的歌曲，其他图像完全没有任何歌曲。
我想从所有div中获取选定的索引，以便可以使用这样的songDetails[selectedIndex].Song
但是我不知道如何获得点击的选定索引。
那么，如何开始播放与单击的项目相对应的歌曲？
const imageData = [{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Song": "http://www.orangefreesounds.com/wp-content/uploads/2018/09/Hi-tech-electronic-background-music-120-bpm.mp3",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Song": "http://www.orangefreesounds.com/wp-content/uploads/2018/04/Relaxing-thinking-time-music.mp3",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
}, {
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
}, {
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
}, {
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
];
function generateTemplate(imageData) {
return `
<div class="image-box">
<p>${imageData.Name}</p>
<img src="${imageData.Icon}"
alt="${imageData.Name}"
style="width:100%"
onclick="playAudio(imageData, this);">
</div>`
}
function playAudio(songDetails) {
let collection = document.getElementsByClassName("image-box")[0].selectedIndex;
alert(collection);
let song = new Audio(songDetails.Song);
song.play();
}
document.getElementById("image-container").innerHTML = `
${imageData.map(generateTemplate).join('')}`body {
padding: 0;
margin: 0;
background: url("/images/party.jpg");
background-size: cover;
/* background: green; */
display: flex;
/* new */
flex-direction: column;
/* new */
height: 100vh;
/* new */
}
#albumImage{
background: green;
height: 150px;
width: 150px;
margin-left: auto;
margin-right: auto;
}
#search-div {
/* position: fixed; */
flex: 0 0 55px;
/* adjusted; disabled flex-shrink */
width: 100%;
background: #242424;
/* z-index: 20; */
}
.search-bar {
border-radius: 50px;
width: 15%;
margin-top: 1%;
margin-left: 42%;
position: relative;
}
.container {
display: flex;
flex-direction: column;
align-items: flex-start;
flex-wrap: wrap;
/* position: relative; */
min-height: 0;
}
.music-bar {
background-color: #242424;
width: 100%;
height: 80px;
position: fixed;
}
.media-controls {
display: flex;
margin-left: auto;
margin-right: auto;
width: 150px;
text-align: center;
height: 40%;
top: 10px;
position: relative;
}
#mediaControlBar {
background: #242424;
height: 10%;
}
.prev-btn {
font-size: 22px;
color: rgb(88, 88, 88);
width: 50%;
margin-top: 5px;
}
.play-btn {
color: rgb(88, 88, 88);
font-size: 28px;
width: 50%;
}
.play-btn:hover {
color: rgb(187, 187, 187);
}
.next-btn {
font-size: 22px;
color: rgb(88, 88, 88);
width: 50%;
margin-top: 5px;
}
#seek-bar {
width: 50%;
height: 5px;
background-color: rgb(78, 78, 78);
display: flex;
border-radius: 50px;
cursor: pointer;
margin-top: 25px;
margin-left: auto;
margin-right: auto;
}
#fill {
background-color: rgb(129, 129, 129);
background-color: #FFF;
border-radius: 20px;
width: 10%;
}
.image-box {
width: 300px;
margin: 20px;
position: relative;
vertical-align: top;
font-family: 'Oswald', sans-serif;
}
.flex-container {
display: flex;
flex-wrap: wrap;
overflow-y: auto;
justify-content: center;
/* margin-top: 2%; */
text-align: center;
color: white;
}
.flex-container img {
opacity: 0.5;
}
.flex-container img:hover {
opacity: 1;
}
@media screen and (max-width: 960px) {
.search-bar {
display: flex;
justify-content: center;
align-items: center;
vertical-align: middle;
margin-left: auto;
margin-right: auto;
top: 15%;
width: 40%;
}
}<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Images</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" media="screen" href="/css/style.css" />
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
</head>
<body>
<link href="https://use.fontawesome.com/releases/v5.4.1/css/all.css" rel="stylesheet" />
<link href="https://fonts.googleapis.com/css?family=Oswald" rel="stylesheet">
<div id="search-div">
<input type="text" class="search-bar" id="searchBar">
</div>
<div class="container">
<div class="flex-container" id="image-container">
</div>
</div>
<div class="control-bar" id="mediaControlBar">
<div class="media-controls">
<div class="prev-btn">
<i class="fas fa-angle-double-left"></i>
</div>
<div class="play-btn">
<i class="fas fa-play"></i>
</div>
<div class="next-btn">
<i class="fas fa-angle-double-right"></i>
</div>
</div>
<div id="seek-bar">
<div id="fill"></div>
<div id="handle"></div>
</div>
</div>
<script src="/js/data.js"></script>
</body>
</html>最佳答案
您必须定义自己的索引，并根据该索引通过收藏集中的歌曲编号选择歌曲
function playAudio(songDetails, self) {
let index = [...self.parentElement.children].indexOf(self)
let song = new Audio(songDetails[index].Song);
您的点击事件也应该在您的div上
<div class="image-box" onclick="playAudio(imageData, this);">
const imageData = [{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Song": "http://www.orangefreesounds.com/wp-content/uploads/2018/09/Hi-tech-electronic-background-music-120-bpm.mp3",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Song": "http://www.orangefreesounds.com/wp-content/uploads/2018/04/Relaxing-thinking-time-music.mp3",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
}, {
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
}, {
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
}, {
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
{
"Icon": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg/687px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg",
"Name": "Mona Lisa",
"Painter": "Picasso",
"Year": "1786"
},
];
function generateTemplate(imageData) {
return `
<div class="image-box"
onclick="playAudio(imageData, this);">
<p>${imageData.Name}</p>
<img src="${imageData.Icon}"
alt="${imageData.Name}"
style="width:100%">
</div>`
}
function playAudio(songDetails, self) {
let index = [...self.parentElement.children].indexOf(self)
console.log(index);
console.log(songDetails);
let song = new Audio(songDetails[index].Song);
song.play();
}
document.getElementById("image-container").innerHTML = `
${imageData.map(generateTemplate).join('')}`body {
padding: 0;
margin: 0;
background: url("/images/party.jpg");
background-size: cover;
/* background: green; */
display: flex;
/* new */
flex-direction: column;
/* new */
height: 100vh;
/* new */
}
#albumImage{
background: green;
height: 150px;
width: 150px;
margin-left: auto;
margin-right: auto;
}
#search-div {
/* position: fixed; */
flex: 0 0 55px;
/* adjusted; disabled flex-shrink */
width: 100%;
background: #242424;
/* z-index: 20; */
}
.search-bar {
border-radius: 50px;
width: 15%;
margin-top: 1%;
margin-left: 42%;
position: relative;
}
.container {
display: flex;
flex-direction: column;
align-items: flex-start;
flex-wrap: wrap;
/* position: relative; */
min-height: 0;
}
.music-bar {
background-color: #242424;
width: 100%;
height: 80px;
position: fixed;
}
.media-controls {
display: flex;
margin-left: auto;
margin-right: auto;
width: 150px;
text-align: center;
height: 40%;
top: 10px;
position: relative;
}
#mediaControlBar {
background: #242424;
height: 10%;
}
.prev-btn {
font-size: 22px;
color: rgb(88, 88, 88);
width: 50%;
margin-top: 5px;
}
.play-btn {
color: rgb(88, 88, 88);
font-size: 28px;
width: 50%;
}
.play-btn:hover {
color: rgb(187, 187, 187);
}
.next-btn {
font-size: 22px;
color: rgb(88, 88, 88);
width: 50%;
margin-top: 5px;
}
#seek-bar {
width: 50%;
height: 5px;
background-color: rgb(78, 78, 78);
display: flex;
border-radius: 50px;
cursor: pointer;
margin-top: 25px;
margin-left: auto;
margin-right: auto;
}
#fill {
background-color: rgb(129, 129, 129);
background-color: #FFF;
border-radius: 20px;
width: 10%;
}
.image-box {
width: 300px;
margin: 20px;
position: relative;
vertical-align: top;
font-family: 'Oswald', sans-serif;
}
.flex-container {
display: flex;
flex-wrap: wrap;
overflow-y: auto;
justify-content: center;
/* margin-top: 2%; */
text-align: center;
color: white;
}
.flex-container img {
opacity: 0.5;
}
.flex-container img:hover {
opacity: 1;
}
@media screen and (max-width: 960px) {
.search-bar {
display: flex;
justify-content: center;
align-items: center;
vertical-align: middle;
margin-left: auto;
margin-right: auto;
top: 15%;
width: 40%;
}
}<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Images</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" media="screen" href="/css/style.css" />
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
</head>
<body>
<link href="https://use.fontawesome.com/releases/v5.4.1/css/all.css" rel="stylesheet" />
<link href="https://fonts.googleapis.com/css?family=Oswald" rel="stylesheet">
<div id="search-div">
<input type="text" class="search-bar" id="searchBar">
</div>
<div class="container">
<div class="flex-container" id="image-container">
</div>
</div>
<div class="control-bar" id="mediaControlBar">
<div class="media-controls">
<div class="prev-btn">
<i class="fas fa-angle-double-left"></i>
</div>
<div class="play-btn">
<i class="fas fa-play"></i>
</div>
<div class="next-btn">
<i class="fas fa-angle-double-right"></i>
</div>
</div>
<div id="seek-bar">
<div id="fill"></div>
<div id="handle"></div>
</div>
</div>
<script src="/js/data.js"></script>
</body>
</html>关于javascript - 我如何根据单击的图像播放声音，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/53103595/