问题描述
这是我的HTML:
<table width="100%" border="0" id="bottoneM">
<tr><td width="18%"></td>
<td>
<fieldset id="sugg_risp">
<center>
<table border="0" height="100%" width="100%">
<tr>
<td width="2%" align="center"></td><td width="2%"></td>
<td height="100%" width="88%" align="left">
<font face="Geneva,Arial,Helvetica,sans-serif">Descrivi il tuo problema</font>
</a></td>
<td>
<IMG SRC="freccia1.gif" name="PHOTO_CHANCE" >
</td>
</tr>
</table>
</center>
</fieldset>
</td>
<td width="18%"></td>
</tr><tr><td></td><td>
<div id="menuM" style="display:none;">
<table border="0" height="100%" width="100%">
<tr>
<td width="2%" align="center"></td><td width="2%"></td>
<td height="100%" width="88%" align="left">
<font face="Geneva,sans-serif">Cosa 1</font>
</a></td>
</tr>
<tr>
<td width="2%" align="center"></td><td width="2%"></td>
<td height="100%" width="88%" align="left">
<font face="Geneva,sans-serif">Cosa 2</font>
</a></td>
</tr>
<tr>
<td width="2%" align="center"></td><td width="2%"></td>
<td height="100%" width="88%" align="left">
<font face="Geneva,sans-serif">Cosa 3</font>
</a></td>
</tr>
<tr>
<td width="2%" align="center"></td><td width="2%"></td>
<td height="100%" width="88%" align="left">
<font face="Geneva,sans-serif">Cosa 4</font>
</a></td>
</tr>
<tr>
<td width="2%" align="center"></td><td width="2%"></td>
<td height="100%" width="88%" align="left">
<font face="Geneva,sans-serif">Cosa 5</font>
</a></td>
</tr>
</table>
</div>
</td></tr>
</td>
</table>
当我单击表 id="bottoneM"
时,我想将 "freccia1.gif"
更改为 "freccia2.gif"
。
页面使用此 JavaScript/JQuery 来显示列表:
$(document).ready(function(){
$("#bottoneM").click(function(){
$("#menuM").slidetoggle();
});
});
非常感谢您的回复!
解决方法
由于您已经在使用 JQuery,因此您可以使用 attr()
更新 src
属性。
$(document).ready(() => {
const myImage = $('#my-image');
const urls = [
'https://placeimg.com/200/200/animals','https://placeimg.com/200/200/people','https://placeimg.com/200/200/arch','https://placeimg.com/200/200/nature','https://placeimg.com/200/200/tech'
];
let i = 0;
$('#my-button').click(() => {
if (i < urls.length - 1) i++;
else i = 0;
myImage.attr('src',urls[i]);
});
});
#container {
display: flex;
flex-direction: column;
max-width: 200px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="container">
<button id="my-button">Refresh</button>
<img src="https://placeimg.com/200/200/animals" id="my-image" alt="image" />
<div>