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A simple way to implement traversal of radio buttons using jQuery

小云云Original: 2018-05-28 11:24:021671browse

This article mainly introduces jQuery's simple method of implementing traversal of radio button boxes, involving jQuery's operation skills related to traversal of page form elements and event response. Friends who need it can refer to it. I hope it can help everyone.

1. Problem background:

There are four radio button boxes, one for the four seasons of the year. Now we need to determine whether it is selected. If this radio button box is selected, assign its value to the input Box

2. Implementation code:

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>遍历单选框</title>
    <script type="text/javascript" src="jquery-1.7.2.min.js" ></script>
    <style>
      #result{
       width: 200px;
      }
    </style>
    <script>
      $(document).ready(function(){
        $("#season").click(function(){
          var season = "";
          $("input[name=&#39;rad&#39;]").each(function(i){
            if($(this).is(":checked"))
            {
              season += "您选择的是一年的第" + (i+1) + "季度：" + $(this).val();
            }
          });
          $("#result").val(season);
        });
      });
    </script>
  </head>
  <body>
    <p>
      <input type="radio" name="rad" id="spring" value="春季" />
      <label for="spring">春季</label>
      <input type="radio" name="rad" id="summer" value="夏季" />
      <label for="summer">夏季</label>
      <input type="radio" name="rad" id="autumn" value="秋季" />
      <label for="autumn">秋季</label>
      <input type="radio" name="rad" id="winter" value="冬季" />
      <label for="winter">冬季</label><br>
      <input type="text" id="result" /><br>
      <input type="button" id="season" value="季节"/>
    </p>
  </body>
</html>

3. Implementation renderings:

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