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How to change div background image in javascript? _html/css_WEB-ITnose
Web Front-end
HTML Tutorial
How to change div background image in javascript? _html/css_WEB-ITnose
How to change div background image in javascript? _html/css_WEB-ITnose
javascript div背景图片
div如下：
javascript方法:
function changeImg(obj){
obj.style.backgroundImage = "url(img/yygk1.png)";
//obj.style.backgroundImg = "url(img/yygk1.png)";
//obj.style.background = "url(img/yygk1.png)";
}
div原本是有背景图片的，当鼠标移动到div上的时，期望改变背景图片为yygk1.png,但实际运行结果是背景图片没了，这是怎么回事呢？
回复讨论(解决方案)
测试了一下，LZ的代码很好用啊。
测试的时候DIV本没有图片。鼠标移动到上面就显示了。
没什么问题
背景图片的 url 正确不？
div如下：
javascript方法:
function changeImg(obj){
obj.style.backgroundImage = "url(img/yygk1.png)";
//obj.style.backgroundImg = "url(img/yygk1.png)";
//obj.style.background = "url(img/yygk1.png)";
}
div原本是有背景图片的，当鼠标移动到div上的时，期望改变背景图片为yygk1.png,但实际运行结果是背景图片没了，这是怎么回事呢？
你要保证背景图片路径正确才行
div如下：
javascript方法:
function changeImg(obj){
obj.style.backgroundImage = "url(img/yygk1.png)";
//obj.style.backgroundImg = "url(img/yygk1.png)";
//obj.style.background = "url(img/yygk1.png)";
}
div原本是有背景图片的，当鼠标移动到div上的时，期望改变背景图片为yygk1.png,但实际运行结果是背景图片没了，这是怎么回事呢？
你要保证背景图片路径正确才行 这个url在哪里定义呢？我还以为这是个关键字呢，难道它只是个变量？
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$(function(){
$("div").onmouseover(function(){
$(this).css("background-image","img/yygk1.png")
})
})
我比较习惯用JQuery 写,图片路径要正确,在同一级目录下可以直接写文件夹的名称,上一级就得用../
div如下：
javascript方法:
function changeImg(obj){
obj.style.backgroundImage = "url(img/yygk1.png)";
//obj.style.backgroundImg = "url(img/yygk1.png)";
//obj.style.background = "url(img/yygk1.png)";
}
div原本是有背景图片的，当鼠标移动到div上的时，期望改变背景图片为yygk1.png,但实际运行结果是背景图片没了，这是怎么回事呢？
你要保证背景图片路径正确才行
div如下：
javascript方法:
function changeImg(obj){
obj.style.backgroundImage = "url(img/yygk1.png)";
//obj.style.backgroundImg = "url(img/yygk1.png)";
//obj.style.background = "url(img/yygk1.png)";
}
div原本是有背景图片的，当鼠标移动到div上的时，期望改变背景图片为yygk1.png,但实际运行结果是背景图片没了，这是怎么回事呢？
你要保证背景图片路径正确才行 "url(img/yygk1.png)"括号中的路径是对的，这个"url"也得定义吗?还是说这是个关键字？
不需要定义，LZ写的URL正确
又测试了一次，可以正确执行。
<div onmouseover="changeImg(this)" style="background-image:url(/xi.jpg);"> asdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklas</div><script type="text/javascript">function changeImg(obj){ obj.style.backgroundImage = "url(img/1.png)"; //obj.style.backgroundImg = "url(img/yygk1.png)"; //obj.style.background = "url(img/yygk1.png)";}</script>Copy after login
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div如下：
javascript方法:
function changeImg(obj){
obj.style.backgroundImage = "url(img/yygk1.png)";
//obj.style.backgroundImg = "url(img/yygk1.png)";
//obj.style.background = "url(img/yygk1.png)";
}
div原本是有背景图片的，当鼠标移动到div上的时，期望改变背景图片为yygk1.png,但实际运行结果是背景图片没了，这是怎么回事呢？
你要保证背景图片路径正确才行
div如下：
javascript方法:
function changeImg(obj){
obj.style.backgroundImage = "url(img/yygk1.png)";
//obj.style.backgroundImg = "url(img/yygk1.png)";
//obj.style.background = "url(img/yygk1.png)";
}
div原本是有背景图片的，当鼠标移动到div上的时，期望改变背景图片为yygk1.png,但实际运行结果是背景图片没了，这是怎么回事呢？
你要保证背景图片路径正确才行 "url(img/yygk1.png)"括号中的路径是对的，这个"url"也得定义吗?还是说这是个关键字？
不是的，晕死，你懂不懂CSS的基本知识啊，url(img/yygk1.png)，能去了解一下基本的知识么？
div如下：
javascript方法:
function changeImg(obj){
obj.style.backgroundImage = "url(img/yygk1.png)";
//obj.style.backgroundImg = "url(img/yygk1.png)";
//obj.style.background = "url(img/yygk1.png)";
}
div原本是有背景图片的，当鼠标移动到div上的时，期望改变背景图片为yygk1.png,但实际运行结果是背景图片没了，这是怎么回事呢？
我也测了一下，不过要先将<script>中的2个<br>标签改到<body>标签中才可行，否则会报js异常。如下： <br /> <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'><div onmouseover="changeImg(this)" style="background-image:url(2.jpg); width:600px; height:500px;"> asdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjas ldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklas</div><br><script type="text/javascript">function changeImg(obj){ obj.style.backgroundImage = "url(2.png)"; //obj.style.backgroundImg = "url(img/yygk1.png)"; //obj.style.background = "url(img/yygk1.png)";}</script></pre><div class="contentsignin">Copy after login</div></div> <br /> <br /> 不需要定义，LZ写的URL正确 <br /> 又测试了一次，可以正确执行。 <br /> <div class="code" style="position:relative; padding:0px; margin:0px;"><div class="code" style="position:relative; padding:0px; margin:0px;"><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'><div onmouseover="changeImg(this)" style="background-image:url(/xi.jpg);"> asdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklas</div><script type="text/javascript">function changeImg(obj){ obj.style.backgroundImage = "url(img/1.png)"; //obj.style.backgroundImg = "url(img/yygk1.png)"; //obj.style.background = "url(img/yygk1.png)";}</script></pre><div class="contentsignin">Copy after login</div></div><div class="contentsignin">Copy after login</div></div><div class="contentsignin">Copy after login</div></div> <br /> <br /> div如下： <br /> <div onmouseover="changeImg(this)"> <br /> </div> <br /> javascript方法: <br /> function changeImg(obj){ <br /> obj.style.backgroundImage = "url(img/yygk1.png)"; <br /> //obj.style.backgroundImg = "url(img/yygk1.png)"; <br /> //obj.style.background = "url(img/yygk1.png)"; <br /> } <br /> <br /> div原本是有背景图片的，当鼠标移动到div上的时，期望改变背景图片为yygk1.png,但实际运行结果是背景图片没了，这是怎么回事呢？ <br /> <br /> 我也测了一下，不过要先将<script>中的2个<br>标签改到<body>标签中才可行，否则会报js异常。如下： <br /> <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'><div onmouseover="changeImg(this)" style="background-image:url(2.jpg);"> asdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjas ldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklas</div><script type="text/javascript">function changeImg(obj){ obj.style.backgroundImage = "url(2.png)"; //obj.style.backgroundImg = "url(img/yygk1.png)"; //obj.style.background = "url(img/yygk1.png)";}</script><br><br></pre><div class="contentsignin">Copy after login</div></div> <br /> <br /> 不需要定义，LZ写的URL正确 <br /> 又测试了一次，可以正确执行。 <br /> <div class="code" style="position:relative; padding:0px; margin:0px;"><div class="code" style="position:relative; padding:0px; margin:0px;"><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'><div onmouseover="changeImg(this)" style="background-image:url(/xi.jpg);"> asdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklas</div><script type="text/javascript">function changeImg(obj){ obj.style.backgroundImage = "url(img/1.png)"; //obj.style.backgroundImg = "url(img/yygk1.png)"; //obj.style.background = "url(img/yygk1.png)";}</script></pre><div class="contentsignin">Copy after login</div></div><div class="contentsignin">Copy after login</div></div><div class="contentsignin">Copy after login</div></div> <br /> <br /> 我也测了一下，不过要先将<script>中的2个<br>标签放到<script>标签之外才可行，否则会报js异常。如下： <br /> <div class="code" style="position:relative; padding:0px; margin:0px;"><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'></pre><div class="contentsignin">Copy after login</div></div><div class="contentsignin">Copy after login</div></div> <br> <div onmouseover="changeImg(this)" style="background-image:url(2.jpg);"> <br> asdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdkls <br> jksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjas ldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlks <br> jdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjk <br> sldjklasasdjasldjlsdjlksjdklsjksldjklasasdjasldjlsdjlksjdklsjksldjklas <br> </div> <br> <br> <script type="text/javascript"> <br> function changeImg(obj){ <br> obj.style.backgroundImage = "url(img/yygk1.png)"; <br> //obj.style.backgroundImg = "url(img/yygk1.png)"; <br> //obj.style.background = "url(img/yygk1.png)"; <br> } <br> </script>
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