ISBN 书名* 作者* 出版社简介

</view>

<view class="form-item">
      <text class="label">分类</text>
      <picker mode="selector" 
              range="{{categories}}" 
              bindchange="onCategoryChange">
        <view class="picker">
          {{form.category || '请选择分类'}}
        </view>
      </picker>
    </view>

<view class="form-item">
      <text class="label">出版日期</text>
      <picker mode="date" 
              bindchange="onDateChange">
        <view class="picker">
          {{form.publishDate || '请选择日期'}}
        </view>
      </picker>
    </view>

<view class="form-item">
      <text class="label">电子书*</text>
      <view class="upload-box" bindtap="uploadBook">
        <view class="{{form.bookUrl ? 'file-name' : 'upload-btn'}}">
          {{form.bookUrl ? '已选择文件' : '上传TXT文件'}}
        </view>
      </view>
    </view>