wxml

 <template name="objectCombine">
     <view>
         <text> {{for}} </text>
         <text> {{bar}} </text>
     </view>
 </template>

 <template name="objectCombine">
     <view>
         <text> {{a}} </text>
         <text> {{b}} </text>
         <text> {{c}} </text>
         <text> {{d}} </text>
     </view>
 </template>
 <text> 使用对象 </text>
 <template is="objectCombine" data="{{for: a, bar: b}}"> </template>

 <text>  对象展开 </text>
 <template is="objectCombine2" data="{{...obj1, ...obj2, e: 5}}"> </template>

 条件渲染:
 <view wx:if="{{length > 1}}">  </view>
 <view wx:elif="{{length > 2}}" >  </view>
 <view wx:else>  </view>

 <block wx:if="{{length >1 }}"">
     <view>  </view>
     <view>  </view>
 </block>