我正在使用Vuejs，并且在控制台中不断收到此警告。同样由于此警告，没有数据被加载。我检查了代码中是否有不需要的标签，但没有找到任何标签。
这是因为javascript代码还是我的html中出现了问题？
这是我的代码：
的HTML
<div class="row">
<div class="col-sm-12" style="margin-top: 20px;">
<form class="form-inline" method="GET" action=".">
<div class="col-sm-3" style="float: right;"><h4>Date:</h4>
<input class="form-control" style="padding-bottom:0px;" type="text" id="datepicker" readonly="true" name="date" value="2016-06-30">
<input type="submit" class="btn btn-primary btn-sm" value="Submit" >
</div>
</form>
<div class="col-sm-2" style="float: right; margin-top:40px;">
<button class="btn btn-info" type="button" id="csv_export">Click to Export</button>
</div>
</div>
<div class="col-sm-12" style="margin:20px;">
<table class="table table-sm table-striped table-bordered" id="absent-list">
<thead>
<tr>
<th>#</th>
<th style="text-align: center; font-size: 15px;">Full Name</th>
<th style="text-align: center; font-size: 15px;">Section</th>
<th style="text-align: center; font-size: 15px;">Person Called</th>
<th style="text-align: center; font-size: 15px;">Person Relation</th>
<th style="text-align: center; font-size: 15px;">Phone Number</th>
<th style="text-align: center; font-size: 15px;">Absent Reason</th>
<th style="text-align: center; font-size: 15px;">Remarks</th>
<th></th>
</tr>
</thead>
<tbody>
<tr v-show="loading" class="text-center">
<td colspan="7">
<i class="fa fa-spinner fa-spin fa-4x"></i>
</td>
</tr>
<tr v-for="record in absent_followback_records">
<td style="text-align: center; font-size: 15px;" scope="row"> {{$index + 1}}</td>
<td style="text-align: center; font-size: 15px;">{{record.student_name}}</td>
<td style="text-align: center; font-size: 15px;">{{record.student_section}}</td>
<td style="text-align: center;">{{record.person_called}}</td>
<td style="text-align: center;">{{record.person_relation}}</td>
<td style="text-align: center;">{{record.phone_number}}</td>
<td style="text-align: center;">{{record.absent_reason_name}}</td>
<td style="text-align: center;">{{record.remarks}}</td>
<td style="text-align: center;"><a href="#" v-on:click="editAbsentFollowbackRecord($index)" data-toggle="modal" data-target="#absent-followback-edit"> Edit </a></td>
</tr>
</tbody>
</table>
</div>
</div>
<script src="/static/js/jquery-ui.min.js"></script>
<script src="/static/js/jquery.plugin.min.js"></script>
<script src="/static/js/jquery.datepick.min.js"></script>
<script src="https://cdn.jsdelivr.net/vue/latest/vue.js"></script>
<script src="/static/js/csrftoken.js"></script>
<script src="/static/js/jquery.TableCSVExport.js"></script>
<script type="text/javascript">
var absentFollowbackListAPiUrl = "/student/api/absent/followback/list/11/";
var absent_reason = jQuery.parseJSON('[{"model": "studentprofile.absentreason", "pk": 1, "fields": {"created": "2016-05-08T06:09:42.410Z", "modified": "2016-05-08T06:09:42.410Z", "reason_name": "sick"}}, {"model": "studentprofile.absentreason", "pk": 2, "fields": {"created": "2016-05-08T06:09:42.416Z", "modified": "2016-05-08T06:09:42.416Z", "reason_name": "arrived late"}}, {"model": "studentprofile.absentreason", "pk": 3, "fields": {"created": "2016-05-08T06:09:42.419Z", "modified": "2016-05-08T06:09:42.419Z", "reason_name": "work at home"}}, {"model": "studentprofile.absentreason", "pk": 4, "fields": {"created": "2016-05-08T06:09:42.423Z", "modified": "2016-05-08T06:09:42.423Z", "reason_name": "public holiday"}}]');
var profile_value = false;
</script>
<script type="text/javascript" src="/static/js/student/student-followback.js"></script>
absent-followback.js文件
$(function() {
$( "#datepicker" ).datepick({dateFormat: 'yyyy-mm-dd'});
});
$('#csv_export').click(function (e) {
e.preventDefault();
$('#absent-list').TableCSVExport({
delivery: 'download',
filename: 'absent-list(' + $( "#datepicker" ).val() + ').csv'
});
});
var vm = new Vue({
el: 'body',
data: {
absent_followback_records: [],
followbackRecordIndex: 'off',
absentReasonList: absent_reason,
loading: false,
currentData: {},
profile: profile_value,
listApiUrl: absentFollowbackListAPiUrl
},
methods: {
populateData: function(api_url){
var self = this;
$.get(api_url, function(data){
self.absent_followback_records = data;
self.loading = false;
});
},
getAbsentFollowbackRecord: function () {
var self = this;
self.loading = true;
var date = $( "#datepicker" ).val();
var api_url = self.listApiUrl + '?date=' + date;
self.populateData(api_url);
},
getProfileAbsentFollowbackRecord: function (event) {
var self = this;
self.loading = true;
var expanded = $(event.target).attr('aria-expanded');
if (expanded == 'false'){
$(event.target).html('Hide Details');
var studentId = $(event.target).attr('studentId');
var api_url = self.listApiUrl + '?student_id=' + studentId;
self.populateData(api_url);
}
else{
$(event.target).html('Show Details');
}
},
editAbsentFollowbackRecord: function (followbackRecordIndex) {
var self = this;
self.currentData = self.absent_followback_records[followbackRecordIndex];
self.followbackRecordIndex = followbackRecordIndex;
},
updateAbsentFollowbackRecord: function (followbackRecordIndex){
var self = this;
var updateData = self.currentData;
var absent_date = updateData.date;
var student_id = updateData.student;
var post_url = updateData.update_url;
var person_called = updateData.person_called;
var person_relation = updateData.person_relation;
var phone_number = updateData.phone_number;
var absent_reason = updateData.absent_reason;
var remarks = updateData.remarks;
if (person_called){
var data = {
student: parseInt(student_id),
date: absent_date,
person_called: person_called,
person_relation: person_relation,
phone_number: phone_number,
absent_reason: parseInt(absent_reason),
remarks: remarks
};
$('#updateAbsentFollowback').html('<i class="fa fa-spinner fa-spin"></i> Saving').attr('class', 'btn btn-primary disabled');
$.ajax({
url: post_url,
type: "PUT",
data: JSON.stringify(data),
dataType: 'json',
contentType: "application/json",
success: function(responseData) {
$('#updateAbsentFollowback').html('Save').attr('class', 'btn btn-success');
if (self.profile == true){
api_url = self.listApiUrl + '?student_id=' + student_id;
self.populateData(api_url);
}
else{
self.getAbsentFollowbackRecord();
}
},
error: function( xhr, status, errorThrown ) {
console.log(errorThrown);
}
});
}
}
},
ready() {
if (this.profile != true){
this.getAbsentFollowbackRecord();
}
}
})
确保您在根元素上有一个结束标记。我刚刚花了最后6个小时，系统地删除了所有内容并拔出了头发。原来我在某个时候删除了我的结局，而Vue正在解释