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jquery中表单 多选框的一种巧妙写法

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
<link href="css/style.css" rel="stylesheet" type="text/css"/>
<script src="../scripts/jquery-1.3.1.js" type="text/javascript"></script>
<script type="text/javascript">
$(function(){
  $("tbody>tr:odd").addClass("odd");
  $("tbody>tr:even").addClass("even");
  $('tbody>tr').click(function(){
    var hasSelected = $(this).hasClass('selected');
    $(this)[hasSelected ? "removeClass" : "addClass"]('selected').find(':checkbox').attr('checked', !hasSelected);
  });
  $('tbody>tr:has(:checked)').addClass('selected');
})
</script>
</head>
<body>
<table>
  <thead>
  <tr>
    <th></th>
    <th>s</th>
    <th>sd</th>
    <th>sdasdsa sda</th>
  </tr>
  </thead>
  <tbody>
  <tr>
    <td><input type="checkbox" name="choice" value=""/></td>
    <td>s</td>
    <td>s</td>
    <td>sdadsadsd</td>
  </tr>
  <tr>
    <td><input type="checkbox" name="choice" value=""/></td>
    <td>sadasdsd</td>
    <td>s</td>
    <td>sads</td>
  </tr>
  <tr>
    <td><input type="checkbox" name="choice" value="" checked='checked'/></td>
    <td>sas</td>
    <td>s</td>
    <td>aasdsad sad</td>
  </tr>
  <tr>
    <td><input type="checkbox" name="choice" value=""/></td>
    <td>ss</td>
    <td>ssad</td>
    <td>dadsadsad</td>
  </tr>
  <tr>
    <td><input type="checkbox" name="choice" value=""/></td>
    <td>Rain</td>
    <td>sd</td>
    <td>sdsad sad asd </td>
  </tr>
  <tr>
    <td><input type="checkbox" name="choice" value=""/></td>
    <td>MAXMAN</td>
    <td>s</td>
    <td>实打实的速度是</td>
  </tr>
  </tbody>
</table>
</body>
</html>

radio 写法:

$(function(){
  $("tbody>tr:odd").addClass("odd"); 
  $("tbody>tr:even").addClass("even"); 
  $('tbody>tr').click(function(){
    $(this).addClass('selected').siblings().removeClass('selected').end().find(':radio').attr('checked', true);
  });
// $('table :radio:checked').parent().parent().addClass('selected');
  $('table :radio:checked').parents("tr").addClass('selected');
//$('tbody>tr:has(:checked)').addClass('selected');

})

checkbox写法:

$(function(){
  $("tbody>tr:odd").addClass("odd");
  $("tbody>tr:even").addClass("even"); 
  $('tbody>tr').click(function(){
    if($(this).hasClass('selected')){
      $(this).removeClass('selected').find(':checkbox').attr('checked', false);
    }else{
      $(this).addClass('selected').find(':checkbox').attr('checked', true);
    }
  });
// $('table :checkbox:checked').parent().parent().addClass('selected');
  $('table :checkbox:checked').parents("tr").addClass('selected');
  //$('tbody>tr:has(:checked)').addClass('selected');
})
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