xzy/pages/set/userinfo.wxml

<view class="content">
    <view class="row b-b">
        <text class="tit">昵称</text>
        <input bindinput="__e" class="input" data-event-opts="{{[ [ 'input',[ [ '__set_model',[ '','name','$event',[] ] ] ] ] ]}}" placeholder="修改昵称" placeholderClass="placeholder" type="text" value="{{name}}"></input>
    </view>
    <button bindtap="__e" class="add-btn" data-event-opts="{{[ [ 'tap',[ [ 'confirm',['$event'] ] ] ] ]}}">提交</button>
</view>