<view class="tui-content">
 <radio-group class="radio-group" bindchange="radioChange">
  <label class="radio" wx:for="{{items}}">
   <view class="tui-menu-list"><radio color="#007aff" value="{{item.name}}" checked="{{item.checked}}"/>{{item.value}}</view>
  </label>
 </radio-group>
 <view class="tui-show-name">
  {{radioStr}}
 </view>
</view>

Page({
 data: {
  items: [
   { name: 'USA', value: '美国' },
   { name: 'CHN', value: '中国', checked: 'true' },
   { name: 'BRA', value: '巴西' },
   { name: 'JPN', value: '日本' },
   { name: 'ENG', value: '英国' },
   { name: 'TUR', value: '法国' },
  ],
  radioStr: '中国'
 },
 radioChange: function (e) {
  var str = null;
  for (var value of this.data.items) {
   if (value.name === e.detail.value) {
    str = value.value;
    break;
   }
  }
  this.setData({ radioStr: str });
 }
})