<t-radio block="{{false}}" checked="{{ item.checked }}" bindchange="changecheck" data-id="{{ item.id }}"/>

// 初始checked=true

  changecheck(e){

    const id = e.currentTarget.dataset.id;

    const checked = e.detail.checked;

    const shopcarinfo=wx.getStorageSync('shopcarinfo');

    const index = shopcarinfo.findIndex(item => item.id === id);

    if (index !== -1) {

      shopcarinfo[index].checked = checked;

    }

    wx.setStorageSync('shopcarinfo', shopcarinfo);

    this.getData();

  },