course-server/modules/Custom.Course.Backend/resources/views/category/form.blade.php

    <div class="form-group">
        {!! Form::label('name','分类名称：', ['class' => 'col-lg-2 control-label']) !!}
        <div class="col-lg-9">
            {!! Form::text('name', null, ['class' => 'form-control', 'placeholder' => '']) !!}
        </div>
    </div>

    <div class="form-group">
        {!! Form::label('name','上级分类：', ['class' => 'col-lg-2 control-label']) !!}
            <div class="col-md-9">
                <select class="form-control m-b " name="parent_id">
                    <option value="0">请选择（顶级分类无需选择）</option>
                    @foreach($categories as $key => $val)
                        @if($category->id != $val->id AND !str_contains($val->dep,$category->path))
                            <?php $select = $category->parent_id == $val->id ? 'selected' : ''; ?>
                            <option {{$select}} value="{{$val->id}}">{{ $val->html }} @if($val->parent_id !=0 )
                                    ﹂@endif {{ $val->name }}</option>
                        @endif
                    @endforeach
                </select>
            </div>
    </div>


    <div class="form-group">
        {!! Form::label('sort','排序：', ['class' => 'col-lg-2 control-label']) !!}
        <div class="col-lg-9">
            {!! Form::text('sort', $category->sort??0, ['class' => 'form-control', 'placeholder' => '0']) !!}
        </div>
    </div>

    <div class="hr-line-dashed"></div>
    <div class="form-group">
        <div class="col-md-offset-2 col-md-8 controls">
            <button type="submit" class="btn btn-primary">保存</button>
        </div>
    </div>