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js遍历json数组

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
 <HEAD>
  <TITLE> New Document </TITLE>
  <META NAME="Generator" CONTENT="EditPlus">
  <META NAME="Author" CONTENT="">
  <META NAME="Keywords" CONTENT="">
  <META NAME="Description" CONTENT="">
 <script language="javascript">
 function e()
 {
    var json=[{"kl_id":"2","kl_title":"Test date","kl_content":"Test date","kl_type":"1","id":"1"},{"kl_id":"2","kl_title":"Test","kl_content":"Test","kl_type":"1","id":"2"}]
    var str = "";
    for (var one in json)
    {
        for(var key in json[one])
        {
            str += json[one][key] + ",";
        }
    }
    document.form.txtName.value = str;
 }
 </script>
 </HEAD>

 <BODY>
<form name="form">
  <a href="#" onclick="e();">Click</a>
  <br>
  <input name="txtName" value="" type="text" size="50">
  </form>
 </BODY>
</HTML>

补充:软件开发 , Java ,
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