<view class="content">
   <text style="color: red;">*</text> <text>反馈内容</text>
    <textarea maxlength="500" value="{{content}}" placeholder-style="font-size: 30rpx"  bindinput="input_fn" 
      placeholder="请输入您的反馈内容"></textarea>
      <text class="textarea_tip">{{content.length}}/300</text>
    <view class="line"></view>
</view>
<view class="imgs">
   <view class="imgs_title"><text>图片上传（最多3张）</text></view> 
    <view class="upimg" bindtap="check_head_img" wx:if="{{images.length<3}}">
     <image src="/images/common/upimg.png" mode="widthFix"></image>
    </view>
    <view class="img_item"  wx:for="{{images}}"  wx:key="item">
       <image class="img" src="{{item}}" mode="aspectFill"></image>
       <image class="empty" src="/images/me/empty.png" mode="widthFix" bindtap="del_img" data-index="{{index}}"></image>
    </view>

</view>
<view class="btn" bindtap="up_cntent">提交</view>