pages/post/post.wxml

<form bindsubmit="formSubmit">
    <toast hidden="{{toastHidden}}" bindchange="onToastChanged">
        {{toastText}}
    </toast>

    <view class="text">请选择分类</view>

    <picker bindchange="onPickerChanged" value="{{index}}" range="{{array}}">
        <input class="picker" disabled="disabled" name="type" value="{{array[index]}}"/>
    </picker>

    <view class="text">请写入干货URL</view>
    <input class="input" placeholder="input here" name="url"/>

    <view class="text">请说明推荐理由</view>
    <input class="input" placeholder="input here" name="desc"/>

    <view class="text">请输入您的网络ID</view>
    <input class="input" placeholder="input here" name="who"/>

    <button class="button" type="primary" formType="submit">我要投稿</button>
</form>