wx-parent/subpackages/orderdetails/orderdetails.js

// subpackages/orderdetails/orderdetails.js
Page({

  /**
   * 页面的初始数据
   */
  data: {
    dingwei: '',
    fuzhi: '',
    yesbaoguo: '',
    item: {}
  },

  onLoad(options) {
    const itemData = decodeURIComponent(options.data);
    // console.log(itemData, 'itemData');
    const item = JSON.parse(itemData);
    this.setData({
      item: item
    });

    const fileIDs = [
      'cloud://cloud1-6g98iw7i28b01747.636c-cloud1-6g98iw7i28b01747-1367995226/images/icon/dingwei.png',
      'cloud://cloud1-6g98iw7i28b01747.636c-cloud1-6g98iw7i28b01747-1367995226/images/icon/fuzhi.png',
      'cloud://cloud1-6g98iw7i28b01747.636c-cloud1-6g98iw7i28b01747-1367995226/images/icon/yesbaoguo.png'
    ];
    
    // 并发下载多个 fileID
    Promise.all(
      fileIDs.map(fileID => wx.cloud.downloadFile({ fileID }))
    ).then(results => {
      // 每个 result 对应一个下载结果
      const tempFilePaths = results.map(r => r.tempFilePath);
      console.log('全部下载成功:', tempFilePaths);
      this.setData({
        dingwei: tempFilePaths[0],
        fuzhi: tempFilePaths[1],
        yesbaoguo: tempFilePaths[2],
      });
    }).catch(err => {
      console.error('有文件下载失败:', err);
    });
  },
})