用jq如何判断单选或者多选题是否已选择..
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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<dl>
<dt>这次培训你觉得？ (单选) </dt>
<dd>
<input class="checkRadio" value="201311051647404033602d67c53fcc42d7a4" name="A" type="radio" />A很好</dd>
<dd>
<input class="checkRadio" value="201311051647404033602f23500a1e40d58c" name="A" type="radio" />B一般</dd>
<dd>
<input class="checkRadio" value="2013110516474040336024b7dae3944a0f8b" name="A" type="radio" />C很差</dd>
</dl>
<dl>
<dt>这次培训又你觉得？ (单选) </dt>
<dd>
<input class="checkRadio" value="201311051647404033602d67c53fcc42d7a4" name="B" type="radio" />A很好</dd>
<dd>
<input class="checkRadio" value="201311051647404033602f23500a1e40d58c" name="B" type="radio" />B一般</dd>
<dd>
<input class="checkRadio" value="2013110516474040336024b7dae3944a0f8b" name="B" type="radio" />C很差</dd>
</dl>
<dl>
<dt>这次负责培训的讲师需要改善哪些 (多选)</dt>
<dd>
<input class="checkbox" value="201311051647404033602faf1e962e4c55bc" type="checkbox" name="C" />A亲和力</dd>
<dd>
<input class="checkbox" value="2013110516474040336028e9bb946242db9f" type="checkbox" name="C" />B专业</dd>
<dd>
<input class="checkbox" value="201311051647404033602d9a10ab0c4e5a82" type="checkbox" name="C" />C互动</dd>
<dd>
<input class="checkbox" value="201311051647404033602313738a324f498b" type="checkbox" name="C" />D课件</dd>
<dl>
<dt>这次负责培训的讲又师需要改善哪些 (多选)</dt>
<dd>
<input class="checkbox" value="201311051647404033602faf1e962e4c55bc" type="checkbox" name="D" />A亲和力</dd>
<dd>
<input class="checkbox" value="2013110516474040336028e9bb946242db9f" type="checkbox" name="D" />B专业</dd>
<dd>
<input class="checkbox" value="201311051647404033602d9a10ab0c4e5a82" type="checkbox" name="D" />C互动</dd>
<dd>
<input class="checkbox" value="201311051647404033602313738a324f498b" type="checkbox" name="D" />D课件</dd>
</dl>
<input type="submit" value="提交" />
</body>
</html>
[解决办法]
<input type="button" value="提交" />
<script type="text/javascript">
$(function(){
$("input:button").click(function(){
$.each($("dl"),function(i,item){
if(!$(this).find("input:checked").size()){
alert("第"+(i+1)+"道题目还没选择！");
return false;
}
});
})
})
</script>
if($("input[type='radio'][selector1]:checked").length==0){//这里可以根据你的需要判断length的长度，然后做相应的事情
alert('msg');
}
if($("input[type='checkbox']:checked").length==0){
alert('msg');
}
