JQuery implements the method of dynamically adding and deleting comments

JQuery implements the method of dynamically adding and deleting comments_jquery

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Release： 2016-05-16 15:58:36

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The example in this article describes the method of dynamically adding and deleting comments using JQuery. Share it with everyone for your reference. The specific implementation method is as follows:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>添加评论</title>
<style type="text/css">
#tbList td,#tbList th{border:1px solid #000;padding:5px;}
</style>
<script src="jquery-1.6.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
var jsonArr =
[
 { "id": 1, "name": "1刘德华", "eamil": "123@126.com", "gender": "男" },
 { "id": 2, "name": "2刘德华", "eamil": "123@126.com", "gender": "女" },
 { "id": 3, "name": "3刘德华", "eamil": "133@126.com", "gender": "女" },
 { "id": 4, "name": "4郭富城", "eamil": "113@126.com", "gender": "女" },
 { "id": 5, "name": "5张学友", "eamil": "223@126.com", "gender": "男" },
 { "id": 6, "name": "6孙红雷", "eamil": "423@126.com", "gender": "男" }
];
function loadData() {
 var $th = "<tr><th>ID</th><th>姓名</th><th>邮箱</th><th>性别</th><th>操作</th></tr>";
 $("#tbList").append($th); //添加表头
 for (var i = 0; i < jsonArr.length; i++) {
  //最后一列放一个空的内容，给删除链接留位置
  var $tr = $("<tr><td>" + jsonArr[i].id + "</td><td>" +
     jsonArr[i].name + "</td><td>" +
     jsonArr[i].eamil + "</td><td>" +
     jsonArr[i].gender + "</td><td></td></tr>");
  var $link = $("<a href='javascript:void(0)'>删除</a>");
  $link.click(function () { //注册删除事件
   $(this).parent().parent().remove(); //删除当前行
  });
  $("td:last", $tr).append($link); //添加删除链接
  $("#tbList").append($tr);
 }
}
$(function () {
 loadData();
 //添加事件
 $("#btnAdd").click(function () {
  var id = $("#txtID").val();
  var name = $("#txtName").val();
  var email = $("#txtEmail").val();
  var gender = $("#txtGender").val();
  if ((id == "") || (name == "") || (email == "") || (gender == "")) {
   alert("请输入完整的信息");
   return;
  }
  var $tr = $("<tr><td>" + id + "</td><td>" + name + "</td><td>" +
     email + "</td><td>" +
     gender + "</td><td></td></tr>");
  var $link = $("<a href='javascript:void(0)'>删除</a>");
  $link.click(function () {
   $(this).parent().parent().remove();
  });
  $("td:last", $tr).append($link);
  $("#tbList").append($tr);
 });
});  
</script>
</head>
<body>
ID：<input type="text" id="txtID" />
姓名：<input type="text" id="txtName" />
email：<input type="text" id="txtEmail" />
性别：<input type="text" id="txtGender" /><br />
<input id="btnAdd" type="button" value="添加" />
<br />
<table id="tbList">
</table>
</body>
</html>

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I hope this article will be helpful to everyone’s jQuery programming.