automat-store-mini/components/extend/button/button.wxml

<button class="tui-btn-class tui-btn {{plain?'tui-'+type+'-outline':'tui-btn-'+(type || 'primary')}} {{wxs.getDisabledClass(disabled,type)}} {{wxs.getShapeClass(shape,plain)}} {{wxs.getShadowClass(type,shadow,plain)}}" hover-class="{{wxs.getHoverClass(disabled,type,plain)}}"
  style="width:{{width}};height:{{height}};line-height:{{height}};font-size:{{size}}rpx" loading="{{loading}}" disabled="{{disabled}}" bindtap="handleClick">
  <slot></slot>
</button>

<wxs module="wxs">
  module.exports = {
    getShadowClass: function(type, shadow, plain) {
      var className = '';
      if (shadow && type != 'white' && !plain) {
        className = 'tui-shadow-' + type;
      }
      return className;
    },
    getDisabledClass: function(disabled, type) {
      var className = '';
      if (disabled && type != 'white' && type != 'gray') {
        className = 'tui-dark-disabled';
      }
      return className;
    },
    getShapeClass: function(shape, plain) {
      var className = '';
      if (shape == 'circle') {
        className = plain ? 'tui-outline-fillet' : 'tui-fillet';
      } else if (shape == "rightAngle") {
        className = plain ? 'tui-outline-rightAngle' : 'tui-rightAngle';
      }
      return className;
    },
    getHoverClass: function(disabled, type, plain) {
      var className = '';
      if (!disabled) {
        className = plain ? 'tui-outline-hover' : ('tui-' + (type || 'primary') + '-hover');
      }
      return className;
    }
  }
</wxs>