本人想实现点击提交按钮，将填写的数据显示到父级页面上，
1.首先想着就是实现刷新本页面，百度搜索给的答案是：this.onLoad();这个方法，发现这个不起作用，需要在onShow()这个生命周期才起作用，
2.又使用了
wx.navigateTo({
url: \'\',
})
跳转，虽然可以实现刷新页面数据，但是发现点击返回按钮，是退回到之前的本页面数据；
3.也是我解决问题的方法，点击提交数据，重新请求渲染数据的接口，重新赋值；
<view class=\'bigbox-ner\' wx:for="{{courseList}}" wx:key="{{index}}" wx:for-index="index_s">
<view class=\'courseCon\'>
<view class=\'bigbox-ner-top\'>
<text class=\'wen1\'>{{item.course}}</text>
<text class=\'wen2 {{item.if == "1"?"show":""}}\'>{{item.if=="0"?\'未上\':\'已上\'}}</text>
</view>
<view class=\'gang\'></view>
<view class=\'classner\'>
<image class=\'icont3\' src=\'/images/u015.png\'></image>
<text>{{item.title}}</text>
</view>
<view class=\'classner-title\'>课程详情</view>
<view class=\'classner-ner\'>
<text class=\'xqnr\'>{{item.detail}}</text>
</view>
<view class=\'course\'>
<text class=\'course-w\'>课程进度</text>
<view class=\'progress\'>
<progress percent="{{item.baifen}}" border-radius=\'13rpx\' font-size=\'30rpx\' stroke-width=\'18rpx\' activeColor=\'#53985F\' backgroundColor=\'#92C29A\'/>
</view>
<view class=\'showProgress\'>{{item.progress}}/{{item.count}}</view>
</view>
<view class=\'anniuBox\' wx:if="{{!item.if}}">
<button class=\'anniu\' bindtap=\'courseleave\' wx:if = \'{{item.showleave == null}}\'>请假</button>
<view class=\'reason\' wx:if=\'{{!item.showleave == ""}}\'>缺勤：{{item.showleave}}</view>
</view>
<view class=\'anniuBox\' wx:if="{{!item.std && item.if}}">
<button class=\'anniu\' bindtap=\'courseFeedback\' data-courseId="{{item.id}}">课堂反馈</button>
</view>
<view class=\'leave {{is_show == 1?"show":"hide"}}\' >
<view class=\'leave_mb\' bindtap=\'close_tit\'></view>
<view class=\'leace_con\'>
<view class="close" bindtap=\'close_tit\'>✖️</view>
<view class=\'tit_title\'>提示</view>
<textarea placeholder=\'请填写请假原因\' value=\'\' bindinput=\'getval\' focus></textarea>
<button bindtap=\'submit_leave_val\' data-courseId = "{{item.id}}">提交</button>
</view>
</view>
submit_leave_val:function(e){ let that =this; let courseId = e.target.dataset.courseid;
// 提交反馈数据 app.commonRequest(\'wxapp/person/leave\', \'POST\', { \'student_id\': that.data.studentId, \'period_id\': courseId, \'leave_msg\': that.data.leave_val, }, function (data) { if(data.status == 200){ wx.showToast({ title: \'提交成功\', icon: \'success\', duration: 1000 })
let nowdate1 = that.formatTime1(that.data.currentDate);
//重新渲染数据， that.getCourseShow(nowdate1, that.data.studentId) }else{ wx.showToast({ title: \'提交失败\', icon: \'fail\', duration: 1000 }) } }) },
getCourseShow: function (showdate, studentId){ let that = this; app.commonRequest(\'wxapp/person/todaycourse\', \'POST\', { \'time\': showdate, \'student_id\': studentId }, function (data) { let studentlist = data.datainfo.studentlist; let courseList = data.datainfo.res; if (courseList == ""){ that.setData({ hasData:1 }) }else{ that.setData({ hasData: 0 }) } that.setData({ courseList: data.datainfo.res, menberList: data.datainfo.studentlist, }) }) },
