js布局实现单选按钮控件

时间:2021-04-02 人气:0

主要是对最近学习的知识做练习，可以巩固提高！

效果如下图：

代码如下：

<!DOCTYPE html>
<html>
<head>
 <meta charset="utf-8">
 <title>单选控件</title>
 <style type="text/css">
 .radioD{
  width: 300px;
  height: 300px;
  background: url(field.jpg) no-repeat;
 }
 .radioD li{
  font-size: 18px;
  font-family: Arial;
  list-style: none;
 }
 .leftU{
  float: left;
 }
 .rightU{
  float: right;
  margin-right: 80px;
 }
 </style>
 <script type="text/javascript">
 window.onload = function(){
 var aLi = document.getElementsByTagName('li');
 var aInput = document.getElementsByTagName('input');
 var i = 0;
 var btn = document.getElementById('foodBtn');
 btn.onclick = function(){
  for(i=0;i<aInput.length;i++)
  {
  if(aInput[i].checked == true){
   alert(aInput[i].value);
  }
  }
 }
 
 }
 </script>
</head>
<body>
<div class="radioD">
 <ul class="leftU">
 <li><input type="radio" name="food" value="面条1">面条1</li>
 <li><input type="radio" name="food" value="馒头1">馒头1</li>
 <li><input type="radio" name="food" value="烧饼1">烧饼1</li>
 <li><input type="radio" name="food" value="窝头1">窝头1</li>
 </ul>
 <ul class="rightU">
 <li><input type="radio" name="food" value="面条2">面条2</li>
 <li><input type="radio" name="food" value="馒头2">馒头2</li>
 <li><input type="radio" name="food" value="烧饼2">烧饼2</li>
 <li><input type="radio" name="food" value="窝头2">窝头2</li>
 </ul>
 <button id="foodBtn">我的食物</button>
 
</div>
</body>
</html>

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