在微信编辑器上没有这个问题,在真机上就出现了

https://developers.weixin.qq.com/miniprogram/dev/component/button.html

<button class="header_icon"

wx:if="{{!wxUserInfo}}"

open-type="getUserInfo"

bindgetuserinfo="accreditWxUser">

<image class="header_icon"

src="/resource/images/ic_mine.png"></image>

</button>