wx-teacher/subpackages/productdetails/productdetails.js

Page({
  data: {
    item: {},
    selectedSpec: '基础款（50粒）',
    quantity: 1,
    showimg: '',
    gouwucimg: '',
    gaoliao: 0,
  },
  onLoad(options) {
    console.log('进了');
    const itemData = decodeURIComponent(options.data);
    const item = JSON.parse(itemData);
    this.setData({
      item: item
    });

    const fileIDs = [
      'cloud://cloud1-6g98iw7i28b01747.636c-cloud1-6g98iw7i28b01747-1367995226/images/icon/show.png',
      // 'cloud://cloud1-6g98iw7i28b01747.636c-cloud1-6g98iw7i28b01747-1367995226/images/icon/gouwuc_img.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({
        showimg: tempFilePaths[0],
        // gouwucimg: tempFilePaths[1]
      });
    }).catch(err => {
      console.error('有文件下载失败:', err);
    });
  },

  handleSpecSelect(e) {
    const spec = e.currentTarget.dataset.spec;
    this.setData({ selectedSpec: spec });
  },
  
  handleQuantityChange(e) {
    const action = e.currentTarget.dataset.action;
    let quantity = this.data.quantity;
    if (action === 'plus') {
      quantity++;
    } else if (action === 'minus' && quantity > 1) {
      quantity--;
    }
    this.setData({ quantity });
  },
  
  addToCart() {
    // 加入购物车逻辑
    console.log('加入购物车');
  },
  
  buyNow() {
    // 立即购买逻辑
    console.log('立即购买');
  }
});