Javascript多样式集 gasdgasdgf 哈斯德格法斯 煤气炉 煤气炉 document.getElementById('style').style.width=“430px”;
Javascript通过newsinsite为所有div提供一个设置样式。请帮助我:)执行以下操作:Javascript多样式集 gasdgasdgf 哈斯德格法斯 煤气炉 煤气炉 document.getElementById('style').style.width=“430px”;,javascript,css,styles,Javascript,Css,Styles,Javascript通过newsinsite为所有div提供一个设置样式。请帮助我:)执行以下操作: <div id="newsinsite" >gasdgasdgf</div> <div id="newsinsite" >hasdgfasd</div> <div id="newsinsite" >gasdgasd</div> <div id="newsinsite" >gasdgasd</div>
<div id="newsinsite" >gasdgasdgf</div>
<div id="newsinsite" >hasdgfasd</div>
<div id="newsinsite" >gasdgasd</div>
<div id="newsinsite" >gasdgasd</div>
<script>
document.getElementById('style').style.width = "430px";
</script>
gasdgasdgf
gasdgasdgf
gasdgasdgf
gasdgasdgf
var elem=document.getElementsByClassName(“newsinsite”);
对于(var i=0;igetElementById('newsinsite')
可能?id必须是唯一的。改用class。这里有很多错误,你应该从一本书开始。id
应该是唯一的,你正在寻找一个类
不要在注释中发布代码(除非它是一小段代码)。请更新原始问题,而不是更新。请注意,旧的IE版本无法与getElementByClassName一起使用
<div id="newsinsite1" class="newsinsite">gasdgasdgf</div>
<div id="newsinsite2" class="newsinsite">gasdgasdgf</div>
<div id="newsinsite3" class="newsinsite">gasdgasdgf</div>
<div id="newsinsite4" class="newsinsite">gasdgasdgf</div>
<script>
var elem = document.getElementsByClassName("newsinsite");
for (var i=0;i<elem.length;i++) {
elem[i].style.width = "430px";
}
</script>
<style>
.newsinsite {
width: "430px";
}
</style>
<div class="newsinsite">gasdgasdgf</div>
<div class="newsinsite">hasdgfasd</div>
<div class="newsinsite">gasdgasd</div>
<div class="newsinsite">gasdgasd</div>
<script>
var i = 0, els = document.getElementsByClassName('newsinsite'), len = els.length;
for(;i<len;i++) {
els[i].style.width = '430px';
}
</script>
.newsinsite {
width: 430px;
}