相关文档：https://uniapp.dcloud.io/component/button

示例：

  1. <template>
  2.     <view>
  3.         <view class="uni-padding-wrap uni-common-mt">
  4.             <button type="primary">页面主操作 Normal</button>
  5.             <button type="primary" loading="true">页面主操作 Loading</button>
  6.             <button type="primary" disabled="true">页面主操作 Disabled</button>
  7.             <button type="default">页面次要操作 Normal</button>
  8.             <button type="default" disabled="true">页面次要操作 Disabled</button>
  9.             <button type="warn">警告类操作 Normal</button>
  10.             <button type="warn" disabled="true">警告类操作 Disabled</button>
  11.             <view class="button-sp-area">
  12.                 <button type="primary" plain="true">按钮</button>
  13.                 <button type="primary" disabled="true" plain="true">不可点击的按钮</button>
  14.                 <button type="default" plain="true">按钮</button>
  15.                 <button type="default" disabled="true" plain="true">按钮</button>
  16.                 <button class="mini-btn" type="primary" size="mini">按钮</button>
  17.                 <button class="mini-btn" type="default" size="mini">按钮</button>
  18.                 <button class="mini-btn" type="warn" size="mini">按钮</button>
  19.             </view>
  20.         </view>
  21.     </view>
  22. </template>