huiting/miniprogram/components/myButton/myButton.wxml

<!--components/myButton/myButton.wxml-->
<button
  class="{{(size === 'large' ? 'my-large-button' : size === 'mini' ? 'my-mini-button' : 'my-button') + (disabled ? (type === 'primary' ? ' my-primary-disabled-button' : ' my-default-disabled-button') : (type === 'primary' ? ' primary-background-color white-text-color' : ' secondary-background-color black-text-color'))}}"
  hover-class="{{type === 'primary' ? 'my-primary-hover-button' : 'my-default-hover-button'}}" size="{{size}}"
  type="{{type}}" disabled="{{disabled}}" form-type="{{formType}}" open-type="{{openType}}">
  <slot></slot>
</button>