Jquery H3问题将在稍后讨论，我希望这个答案有效。这确实符合我的意图。 function changeH3(){ $('h3').on('click',function(){ var boxes = $('.checkbox[type="checkbox"

H3问题将在稍后讨论，我希望这个答案有效。这确实符合我的意图。

function changeH3(){
$('h3').on('click',function(){
    var boxes = $('.checkbox[type="checkbox"]');
    if ( boxes.length === boxes.filter(':checked').length ) {
        $(this).closest('h3')
        .toggleClass('bg-warning')
        .toggleClass('bg-success'); 

    }
});
}

 <div id= "acc1" >
   <form role="form" action="run.php" method="post" name='details'>

     <fieldset class="form-horizontal form-group bg-info">  
        <input type="checkbox" class="box " name="checkBox[]" id="1"   onClick="checkval(this)" <?php echo $boxes[1] ? 'checked = "checked"' : '' ?>>Inspected 
     </fieldset>  

     <fieldset class="form-horizontal form-group bg-info">  
        <input type="checkbox" class="box " name="checkBox[]" id="2" onClick="checkval(this)"<?php echo $boxes[2] ? 'checked = "checked"' : '' ?>>All 
     </fieldset> 

     <fieldset class="form-horizontal form-group bg-info">  
        <input type="checkbox" class="box " name="checkBox[]" id="3" onClick="checkval(this)"<?php echo $boxes[3] ? 'checked = "checked"' : '' ?>>All 
     </fieldset>

     <fieldset class="form-horizontal form-group bg-info">  
        <input type="checkbox" class="box " name="checkBox[]" id="4" onClick="checkval(this)"<?php echo $boxes[4] ? 'checked = "checked"' : '' ?>>aligns 
     </fieldset> 

     <fieldset class="form-horizontal form-group bg-info">  
        <input type="checkbox" class="box " name="checkBox[]" id="5" onClick="checkval(this)"<?php echo $boxes[5] ? 'checked = "checked"' : '' ?>>and 
     </fieldset>

     <fieldset class="form-horizontal form-group bg-info">  
        <input type="checkbox" class="box " name="checkBox[]" id="6" onClick="checkval(this)"<?php echo $boxes[6] ? 'checked = "checked"' : '' ?>> match 
     </fieldset> 

     <fieldset class="form-horizontal form-group bg-info">  
        <input type="checkbox" class="box " name="checkBox[]" id="7" onClick="checkval(this)"<?php echo $boxes[7] ? 'checked = "checked"' : '' ?>>free 
     </fieldset> 

     <fieldset class="form-horizontal form-group bg-info">  
        <input type="checkbox" class="box " name="checkBox[]" id="8" onClick="checkval(this)"<?php echo $boxes[8] ? 'checked = "checked"' : '' ?>>Front 
     </fieldset> 

     <fieldset class="form-horizontal form-group bg-info">  
        <input type="checkbox" class="box " name="checkBox[]" id="9" onClick="checkval(this)"<?php echo $boxes[9] ? 'checked = "checked"' : '' ?>>Weather 
     </fieldset> 

     <fieldset class="form-horizontal form-group bg-info">  
        <input type="checkbox" class="box " name="checkBox[]" id="10"  onClick="checkval(this)"<?php echo $boxes[10] ? 'checked = "checked"' : '' ?>>Key 
     </fieldset> 

     <textarea class= "form-control notes" name="notes[]" data-num="1" onChange="getVal(this)" placeholder = "If any of the above items were , etc."><?php echo $notes[1] ? $notes[1] : '' ?></textarea>

</div> 

$('input[type="checkbox"]').click(function (event) {
  $target = $(this);
  $parent = $target.closest('.panel') // this selector may be incorrect
  $h3 = $target.find('h3');
  $checkboxes = $parent.find('input[type="checkbox"]');
  $checked = $parent.find('input[type="checkbox"]:checked');

 if ($checked.length == $checkboxes.length) {
    $h3.addClass('bg-success'); 
    $h3.removeClass('bg-warning'); 
  } else {
   $h3.removeClass('bg-success'); 
   $h3.addClass('bg-warning');
  }
});