采用弹性布局即可。 wxml: <view class="form_item">       <radio-group class='radio-group'>         <view class="radio">           <label>             <radio value="America" color="#359ce7">               美国             </radio>           </label>         </view>         <view class="radio">           <label>             <radio value="China" color="#359ce7">               中国             </radio>           </label>         </view> <view class="radio">           <label>             <radio value="Brazil" color="#359ce7">              巴西             </radio>           </label>         </view>       </radio-group>     </view> wxss: .form_item {   display: flex;   align-items: center;   height: 38px;   } .radio-group {     flex: 1;     display: flex;     align-items: center;     justify-content: space-around;   }