<pre class="brush:html;toolbar:false">&lt;buttonclass=&quot;weui-btn&quot;form-type=&#39;submit&#39;plain=&#39;true&#39;&gt;&lt;imagesrc=&#39;../../images/bm_btn.png&#39;mode=&#39;widthFix&#39;&gt;&lt;/image&gt;&lt;/button&gt;</pre><p>button设为透明：plain=’true’</p><p>button的padding设为：0，border设为：none</p>