wanzb_xcxv3/pages/message/message.wxml

<view class="list" wx:for="{{list}}">
    <view class="me" wx:if='{{item.user_id}}'>
        <image src="{{item.user_avatar}}" ></image>
        <view class="content">{{item.content}}</view>
    </view>
    <view class="wz" wx:else>
        <image src="{{item.user_avatar}}" ></image>
        <view>
            <text class="name">{{item.user_name}}</text>
            <view class="content">{{item.content}}</view>
        </view>
    </view>
</view>



<view class="post">
    <input  value="{{comment}}" placeholder-style="color:#999" maxlength="500" bindinput="inputchange" type="text" placeholder="我要咨询"/>
    <button bindtap="post">提交</button>
</view>