基于Bootstrap与jQuery实现input-group动态添加删除

<div class="row"> 
 <div class="col-lg-6"> 
 <div class="input-group"> 
  <span class="input-group-addon"> 
  <input type="checkbox" aria-label="..."> 
  </span> 
  <input type="text" class="form-control" aria-label="..."> 
 </div><!-- /input-group --> 
 </div><!-- /.col-lg-6 --> 
 <div class="col-lg-6"> 
 <div class="input-group"> 
  <span class="input-group-addon"> 
  <input type="radio" aria-label="..."> 
  </span> 
  <input type="text" class="form-control" aria-label="..."> 
 </div><!-- /input-group --> 
 </div><!-- /.col-lg-6 --> 
</div><!-- /.row --> 

/** 
 * Created by DreamBoy on 2016/4/29. 
 */ 
$(function() { 
 $.fn.initInputGroup = function (options) { 
  //1.Settings 初始化设置 
  var c = $.extend({ 
   'widget' : 'input', 
   'add' : "<span class=\"glyphicon glyphicon-plus\"></span>", 
   'del' : "<span class=\"glyphicon glyphicon-minus\"></span>" 
  }, options); 
 
  var _this = $(this); 
 
  //添加序号为1的输入框组 
  addInputGroup(1); 
 
  /** 
   * 添加序号为order的输入框组 
   * @param order 输入框组的序号 
   */ 
  function addInputGroup(order) { 
   //1.创建输入框组 
   var inputGroup = $("<div class='input-group' style='margin: 10px 0'></div>"); 
   //2.输入框组的序号 
   var inputGroupAddon1 = $("<span class='input-group-addon'></span>"); 
   //3.设置输入框组的序号 
   inputGroupAddon1.html(" " + order + " "); 
 
   //4.创建输入框组中的输入控件（input或textarea） 
   var widget = '', inputGroupAddon2; 
   if(c.widget == 'textarea') { 
    widget = $("<textarea class='form-control' style='resize: vertical;'></textarea>"); 
    inputGroupAddon2 = $("<span class='input-group-addon'></span>"); 
   } else if(c.widget == 'input') { 
    widget = $("<input class='form-control' type='text'/>"); 
    inputGroupAddon2 = $("<span class='input-group-btn'></span>"); 
   } 
 
   //5.创建输入框组中最后面的操作按钮 
   var addBtn = $("<button class='btn btn-default' type='button'>" + c.add + "</button>"); 
   addBtn.appendTo(inputGroupAddon2).on('click', function() { 
    //6.响应删除和添加操作按钮事件 
    if($(this).html() == c.del) { 
     $(this).parents('.input-group').remove(); 
    } else if($(this).html() == c.add) { 
     $(this).html(c.del); 
     addInputGroup(order+1); 
    } 
    //7.重新排序输入框组的序号 
    resort(); 
   }); 
 
   inputGroup.append(inputGroupAddon1).append(widget).append(inputGroupAddon2); 
 
   _this.append(inputGroup); 
  } 
 
  function resort() { 
   var child = _this.children(); 
   $.each(child, function(i) { 
    $(this).find(".input-group-addon").eq(0).html(' ' + (i + 1) + ' '); 
   }); 
  } 
 } 
}); 

<!DOCTYPE html> 
<html lang="en"> 
<head> 
 <meta charset="UTF-8"> 
 <meta http-equiv="X-UA-Compatible" content="IE=edge"> 
 <meta name="viewport" content="width=device-width, initial-scale=1"> 
 <title>输入框组</title> 
 <link rel="stylesheet" href="css/bootstrap.min.css" type="text/css"> 
 <style> 
  /*.input-group-add .input-group { 
   margin: 10px 0; 
  }*/ 
 </style> 
 
 <!--<link href="assets/font-awesome/css/font-awesome.css" rel="stylesheet" />--> 
 <!--[if lt IE 9]> 
 <script src="js/html5shiv.js"></script> 
 <script src="js/respond.min.js"></script> 
 <![endif]--> 
</head> 
<body> 
 <div class="container"> 
  <div class="input-group-add"> 
   <!--<div class="input-group"> 
    <span class="input-group-addon"> 1 </span> 
    <!–<input type="text" class="form-control" aria-label="...">–> 
    <textarea class="form-control"></textarea> 
    <span class="input-group-addon"> 
     <button class="btn btn-default" type="button"> + </button> 
    </span> 
   </div>--> 
  </div> 
 </div> 
 
 <script src="js/jquery-1.11.1.min.js"></script> 
 <script src="js/bootstrap.min.js"></script> 
 <script src="inputGroup.js"></script> 
 <script> 
  $(function() { 
   $('.input-group-add').initInputGroup({ 
    'widget' : 'textarea', //输入框组中间的空间类型 
    /*'add' : '添加', 
    'del' : '删除'*/ 
   }); 
  }); 
 </script> 
</body> 
</html> 

$('.input-group-add').initInputGroup({ 
    'widget' : 'input', //输入框组中间的空间类型 
    /*'add' : '添加', 
    'del' : '删除'*/ 
   });