jquery - 如何动态地将类添加到div

Question

我需要动态添加一个类，因为我使用 addClass 方法然后类正在添加，但它不符合我的要求。这是我的代码

 <div id="form-copy">
   <div class="abc">
       Here some code is there....
   <div>
 <div>

我正在尝试这样..

  var p = 0;
  for(var i =0; i<n;i++){
    $(".abc:first").clone(true).appendTo("#form-copy")
    $(".abc").addClass( "dynamicClass"+ ++p);
  }
now am getting output is...
 if here n=3
     <div class="abc dynamicClass1 dynamicClass2 dynamicClass3">...</div>
     <div class="abc dynamicClass1 dynamicClass2 dynamicClass3">...</div>
     <div class="abc dynamicClass1 dynamicClass2 dynamicClass3">...</div>

But i need output like this
  if here n=3
     <div class="abc dynamicClass1">...</div>
     <div class="abc dynamicClass2">...</div>
     <div class="abc dynamicClass3">...</div>

Plese help me to get like this output.Thank you

Answer 1

for(var i =0; i<n;i++){
    $(".abc:first").clone().appendTo("#form-copy").addClass("dynamicClass" + (i + 1));
  }