我在HTML页面中有4张图片:1.png,2.png,3.png和4.png。我想当用户点击图像3时,执行各种图像右侧的旋转。 (将图像1替换为图像3,将图像2替换为图像1,将图像4替换为图像2,将图像3替换为图像4)。
这是我尝试的代码,但它不起作用:
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<script type="text/javascript">
function rotation()
{
img1 = document.getElementById('img1');
img2 = document.getElementById('img2');
img3 = document.getElementById('img3');
img4 = document.getElementById('img4');
img2.parentNode.appendChild(img4);
img1.parentNode.appendChild(img2);
img3.parentNode.appendChild(img1);
img4.parentNode.appendChild(img3);
}
</script>
<style type="text/css">
table
{
margin-left:auto;
margin-right:auto;
}
</style>
</head>
<body>
<table class="centrer">
<tr>
<td><img src="exercice1/1.png" alt="Image 1" id="img1"></td>
<td><img src="exercice1/2.png" alt="Image 2" id="img2"></td>
</tr>
<tr>
<td><img src="exercice1/3.png" alt="Image 3" id="img3" onclick="rotation()"></td>
<td><img src="exercice1/4.png" alt="Image 4" id="img4"></td>
</tr>
</table>
</body>
</html>
问题是,当我第一次点击图像3时,图像的排序方式如下:
2
1 3 4
并且在第二次他们这样做了:
2 1 3 4
我希望他们这样订购:
旋转前:
1 2
3 4
旋转后:
3 1
4 2
答案 0 :(得分:1)
改为更改src
属性。像这样:
function rotation()
{
img1 = document.getElementById('img1');
img2 = document.getElementById('img2');
img3 = document.getElementById('img3');
img4 = document.getElementById('img4');
src1 = img1.src;
src2 = img2.src;
src3 = img3.src;
src4 = img4.src;
img2.src = src4;
img1.src = src2;
img3.src = src1;
img4.src = src3;
}
答案 1 :(得分:0)
发生了什么事呢?我的猜测是,移动它们时,元素的parentNode正在改变:
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<script type="text/javascript">
function rotation()
{
var img1 = document.getElementById('img1'),
img2 = document.getElementById('img2'),
img3 = document.getElementById('img3'),
img4 = document.getElementById('img4'),
cont1 = img1.parentNode,
cont2 = img2.parentNode,
cont3 = img3.parentNode,
cont4 = img4.parentNode;
cont2.appendChild(img4);
cont1.appendChild(img2);
cont3.appendChild(img1);
cont4.appendChild(img3);
}
</script>
<style type="text/css">
table
{
margin-left:auto;
margin-right:auto;
}
</style>
</head>
<body>
<table class="centrer">
<tr>
<td><img src="exercice1/1.png" alt="Image 1" id="img1"></td>
<td><img src="exercice1/2.png" alt="Image 2" id="img2"></td>
</tr>
<tr>
<td><img src="exercice1/3.png" alt="Image 3" id="img3" onclick="rotation()"></td>
<td><img src="exercice1/4.png" alt="Image 4" id="img4"></td>
</tr>
</table>
</body>
</html>