<div id="content">
  <table class="mytable">
    <tr class="header">
      <td>选择</td>
      <td>用户名</td>
      <td>学号</td>
      <td>班级</td>
      <td>操作</td>
    </tr>
    <tr v-for="item in mydata">
      <td><input type="checkbox" :value="item.Id" /></td>
      <td>{{item.UserName}}</td>
      <td>{{item.Number}}</td>
      <td>{{item.Class}}</td>
      <td>
        <a href="#" rel="external nofollow" rel="external nofollow" v-on:click="udelete(item.Id)">删除</a>
        <a href="#" rel="external nofollow" rel="external nofollow" v-on:click="updateu(item)">更新</a>
      </td>
    </tr>
  </table>
</div>

 //实例化vue.js(用来给表格提供数据的)
        var vm = new Vue({
          el: '#content',
          data: {
            mydata: data
          },
          methods: {
            udelete: function (_id) //删除
            {
            },
            updateu: function (item) //更新
            {
            }
          }
        });

@* 给layer弹出层提供数据 *@
<div id="updatecontent" style="display:none">
  <table style="margin-top:20px;margin-left:23px;">
    <tr>
      <td>
        用户名:
      </td>
      <td>
        <input type="text" v-model="userinfo.UserName" />
      </td>
    </tr>
      <tr>
      <td>
        学号:
      </td>
      <td>
        <input type="text" v-model="userinfo.Number" />
      </td>
    </tr>
      <tr>
      <td>
        班级:
      </td>
      <td>
        <input type="text" v-model="userinfo.Class" />
      </td>
    </tr>
  </table>
</div>

  updateu: function (item) //更新
            {          
              layer.open({
                type: 1,
                title: "更新",
                area: ["300px", "230px"],
                content: $("#updatecontent"),
                btn: ["保存"],
                yes: function (index) {
                  alert("点击保存");
                },
                cancel: function () { //点击关闭按钮
                }
              });
            }

//给更新div添加数据 
   var update_vm = new Vue({ 
     el: "#updatecontent", 
     data: { 
       userinfo: {} 
     } 
   }); 

updateu: function (item) //更新 
            { 
 
              update_vm.$data.userinfo = item; 
                 
            } 

 layer.open({
                type: 1,
                title: "更新",
                area: ["300px", "230px"],
                content: $("#updatecontent"),
                btn: ["保存"],
                yes: function (index) {
                  //调用后台实现更新
                  $.post('/home/UpdateU', update_vm.$data.userinfo, function (result) {
                  });
                },
                cancel: function () { //点击关闭按钮
                }
              });

//更新 
  public JsonResult UpdateU(Users uinfo) 
  { 
    testEntities en = new testEntities(); 
 
    en.Entry<Users>(uinfo).State = System.Data.EntityState.Modified; 
 
    int count = en.SaveChanges(); 
 
    return Json(count); 
  } 

updateu: function (item) //更新 
{ 
  //克隆一个对象 
  var databack = $.extend({}, item); 
  update_vm.$data.userinfo = databack; 
               
} 

$.post('/home/UpdateU', update_vm.$data.userinfo, function (result) { 
              
  //可以把vue.js数据替换从而更新更新到页面 
  vm.$data.mydata.splice(index, index, update_vm.$data.userinfo); 
});