<table border="1" cellpadding="0" cellspacing="0" id="myTab">

        <thead>

            <tr>

                <th>姓名</th>

                <th>年龄</th>

                <th>性别</th>

                <th>操作</th>

            </tr>

        </thead>

        <tbody>

            <tr>

                <td>王二狗</td>

                <td>24</td>

                <td>男</td>

                <td><a href="#" class="delete">删除</a></td>

            </tr>

            <tr>

                <td>王小何</td>

                <td>26</td>

                <td>女</td>

                <td><a href="#" class="delete">删除</a></td>

            </tr>

        </tbody>

    </table>

/*

* @Author: Administrator

* @Date:   2017-01-11 15:12:25

* @Last Modified by:   Administrator

* @Last Modified time: 2017-01-11 15:13:33

*/

'use strict';

var $window = $(window);

var $body = $('body');

function pop(arg){

    if(!arg) {

      console.error('pop title is required');

    }

    var conf = {}, $box, $mask, $title, $content, $confirm, $cancel, timer, dfd, confirmed;

    dfd = $.Deferred();

    if(typeof arg == 'string')

      conf.title = arg;

    else{

      conf = $.extend(conf,arg);

    }

    $box = $('<div>' +

                '<div class="pop_title">'+ conf.title +'</div>' +

                '<div class="pop_content">' +

                  '<div>' +

                    '<button style="margin-right: 5px;" class="primary confirm">确定</button>' +

                    '<button class="cancel">取消</button></div>' +

                '</div>' +

              '</div>')

    .css({

      color: '#333',

      width: 300,

      height: 200,

      background: '#fff',

      position: 'fixed',

      'box-radius': 3,

      'box-shadow': '0 1px 2px rgba(0,0,0,.3)'

    })

    $title = $box.find('.pop_title').css({

      padding: '5px 10px',

      'font-weight': 700,

      'font-size': 20,

      'text-align': 'center'

    })

    $content = $box.find('.pop_content').css({

      padding: '5px 10px',

      'text-align': 'center'

    })

    $confirm = $content.find('button.confirm');

    $cancel = $content.find('button.cancel');

    $mask = $('<div></div>')

    .css({

      position: 'fixed',

      background: 'rgba(0,0,0,0.5)',

      top: 0,

      bottom: 0,

      left: 0,

      right: 0

    })

    timer = setInterval(function(){

      if (confirmed !== undefined) {

        dfd.resolve(confirmed);

        clearInterval(timer);

        dismiss_pop();

      }

    },50);

    $confirm.on('click', on_confirm);

    // $cancel.on('click', function(){

    //   confirmed = false;

    // });

    $cancel.on('click',on_cancel);

    $mask.on('click', on_cancel);

    function on_confirm(){

      confirmed = true;

    };

    function on_cancel(){

      confirmed = false;

    };

    function dismiss_pop(){

      $mask.remove();

      $box.remove();

    }

    function adjust_box_posititon() {

      var window_width = $window.width(),

          window_height = $window.height(),

          box_width = $box.width(),

          box_height = $box.height(),

          move_x,

          move_y;

      move_x = (window_width-box_width)/2;

      move_y = ((window_height-box_height)/2)-30;

      $box.css({

        left:move_x,

        top:move_y,

      });

    }

    //resize事件作用是，当缩放窗口的时候调用adjust_box_posititon(),使$box一直居中

    //但是不能一打开窗口的时候就要求缩放，所以要增加一次触发$window.resize()

    $window.on('resize', function() {

      adjust_box_posititon();

    });

    $mask.appendTo($body);

    $box.appendTo($body);

    //增加一次触发使$box居中

    $window.resize();

    return dfd.promise();

}

<script>

var $task_delete_trigger = $('.delete');

/*查找并监听所有删除按钮的点击事件*/

function listen_task_delete() {

    $task_delete_trigger.on('click', function () {

      var $this = $(this);

      /*找到删除按钮所在的task元素*/

      var $item = $this.parent().parent();

      /*确认删除？*/

      pop('确定删除?')

        .then(function (r) {

          if (r == true) {

              $item.remove()

          }

          else{

              return false

          };

        })

    })

}

listen_task_delete();

</script>